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Remembering 9/11 on the 17th anniversary of terrorist attacks

Yahoo News Photo Staff

Americans commemorated he Sept. 11 terror attacks with somber tributes, volunteer projects and a new monument to victims.

Thousands of victims’ relatives, survivors, rescuers and others gathered at Tuesday’s ceremony at the World Trade Center.

President Donald Trump and first lady Melania Trump joined an observance at the 9/11 memorial near Shanksville, Pennsylvania. A new tower honoring victims was dedicated there Saturday.

Vice President Mike Pence attended a ceremony at the Pentagon.

Nearly 3,000 people died when hijacked planes slammed into the trade center, the Pentagon and a field near Shanksville on Sept. 11, 2001. (AP)

Photos: 9/11: Then and now — 17 years later »
Interactive: Iconic 9/11 images: 17 years later »
Photos: Tribute in Light  »

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Remembering 9/11 on the 17th anniversary of the attacks

A member of the U.S. Army checks the name on a memorial bench during the 17th annual September 11 observance ceremony at the Pentagon in Washington, Sept. 11, 2018. (Photo: Joshua Roberts/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

Members of the military are seen on the grounds of the National 9/11 Pentagon Memorial before the start of the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)

Remembering 9/11 on the 17th anniversary of the attacks

President Donald Trump speaks during the September 11th Flight 93 Memorial Service in Shanksville, Pa., Tuesday, Sept. 11, 2018. Stephen Clark, Superintendent of the National Parks of Western Pennsylvania, is left. (Photo: Gene J. Puskar/AP)

Remembering 9/11 on the 17th anniversary of the attacks

A crowd of family members of the victims and other guests attend the 17th annual September 11 observance at the Flight 93 National Memorial in Stoystown near Shanksville, Pa., Sept. 11, 2018. (Photo: Kevin Lamarque/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

A woman wearing a button of late United Airlines Flight 93 Captain Jason Dahl applauds during the 17th annual September 11 observance at the Flight 93 National Memorial near Shanksville, Pa., Sept. 11, 2018. (Photo: Kevin Lamarque/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

Guests visits the National 9/11 Memorial during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center, at the National 9/11 Memorial and Museum in New York, Sept. 11, 2018. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

U.S. President Donald Trump and first lady Melania Trump walk with park superintendent Stephen Clark at the Flight 93 National Memorial during the 17th annual September 11 observance at the memorial near Shanksville, Pa., Sept. 11, 2018. (Photo: Kevin Lamarque/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

Traders pause for a moment of silence marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center on the floor of the New York Stock Exchange shortly before the opening bell in New York, Sept. 11, 2018. (Photo: Lucas Jackson/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

A guest wipes her eyes at the National 9/11 Memorial, during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center, at the National 9/11 Memorial and Museum in New York, Sept. 11, 2018. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

U.S. President Donald Trump and first lady Melania Trump look out from the “Flight Path Overlook” at the Flight 93 National Memorial during the 17th annual September 11 observance at the memorial near Shanksville, Pa., Sept. 11, 2018. (Photo: Kevin Lamarque/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

Bill Anders, left, and Sharon Custer ring bells as part of the Name Presentation and Ringing of Bells Remembrance during the September 11th Flight 93 Memorial Service in Shanksville, Pa., attended by President Donald Trump and first lady Melania Trump, Tuesday, Sept. 11, 2018. (Photo: Gene J. Puskar/AP)

Remembering 9/11 on the 17th anniversary of the attacks

Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. Also on stage is Defense Secretary Jame Mattis, right. (AP Photo/Pablo Martinez Monsivais)

Remembering 9/11 on the 17th anniversary of the attacks

Two members of the New York City fire department look towards One World Trade Center through the open ceiling of the Oculus, part of the World Trade Center transportation hub in New York, Tuesday, Sept. 11, 2018, the anniversary of 9/11 terrorist attacks. The transit hall ceiling window was opened just before 10:28 a.m., marking the moment that the North Tower of the World Trade Center collapsed on September 11, 2001. (Photo: Craig Ruttle/AP)

Remembering 9/11 on the 17th anniversary of the attacks

Retired New York firefighter Bruce Stanley carries a photograph of fellow firefighter Liam Smith Jr. during a ceremony, Tuesday, Sept. 11, 2018, in New York, at the World Trade Center, marking the 17th anniversary of the terrorist attacks on the United States. Smith was one of 343 members of the fire department who were killed on Sept. 11, 2001. (AP Photo/Mark Lennihan)

Remembering 9/11 on the 17th anniversary of the attacks

Lila McConnell, 4, waits with her mother before the start of the, 10th annual, Colorado 9/11 Stair Climb at Red Rocks Amphitheatre on September 11, 2018 in Morrison, Colo. Lila’s father is a firefighter for South Metro Fire in Parker, Colorado. (Photo: R.J. Sangosti/The Denver Post via Getty Images)

Remembering 9/11 on the 17th anniversary of the attacks

Kurt Thomas, a West Metro Fire recruit, carries a fire hose with the names of the 343 fallen firefighters, that were during 9/11, during the, 10th annual, Colorado 9/11 Stair Climb at Red Rocks Amphitheatre on Sept. 11, 2018 in Morrison, Colorado. (Photo: R.J. Sangosti/The Denver Post via Getty Images)

Remembering 9/11 on the 17th anniversary of the attacks

United Nations Representatives observe a moment of silence in honor of 9/11 victims during a UN Security Council meeting on the situation in Middle East and Idlib, Syria at the United Nations Headquarters in New York on Sept. 11, 2018. (Photo: Atilgan Ozdil/Anadolu Agency/Getty Images)

Remembering 9/11 on the 17th anniversary of the attacks

Lt. Victor White of the Miami Beach Fire Department stands at attention during a ceremony on Tuesday, Sept. 11, 2018 honoring those who died during the terrorist attacks on Sept. 11, 2001. Members of the Miami Beach Fire Department, along with City of Miami Beach officials, gathered at Miami Beach Fire Station 2 for a ceremony honoring those who died during the 9/11 terrorist attacks. (Photo: Jose A. Iglesias/el Nuevo Herald/TNS via Getty Images)

Remembering 9/11 on the 17th anniversary of the attacks

A guest visits the south reflecting pool as he lays his hands on the names of victims during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center, at the National 9/11 Memorial and Museum in New York, Sept.11, 2018. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

Audience members attend the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. (Photo: Evan Vucci/AP)

Remembering 9/11 on the 17th anniversary of the attacks

President Donald Trump gestures after arriving at John Murtha Johnstown-Cambria County Airport in Johnstown after arriving in Pennsylvania to take part in the 17th annual September 11 observance at the Flight 93 National Memorial in Somerset County, Pa., Sept. 11, 2018. (Photo: Kevin Lamarque/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

U.S. Army Reserve Sgt. Edwin morales kneels as he honors his cousin Ruben Correa during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center, at the National 9/11 Memorial and Museum in New York, Sept.11, 2018. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

An audience member with a “Let’s Roll” tattoo stands for the national anthem during the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. (Photo: Evan Vucci/AP)

Remembering 9/11 on the 17th anniversary of the attacks

White House Chief of Staff John Kelly (C) places his hand over his heart during the playing of “Taps” while joining members of the White House staff in observing a moment of silence on the south lawn of the White House at 8:37 A.M., the time the first tower was hit in the attacks of September 11th, on Sept. 11, 2018 in Washington, D.C. (Photo: Win McNamee/Getty Images)

Remembering 9/11 on the 17th anniversary of the attacks

A guest pauses at among names at the edge of the north reflecting pool at the National 9/11 Memorial and Museum during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center in New York, Sept.11, 2018. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

Former Mayor of New York City Rudy Giuliani (C) speaks with Chris Christie, former New Jersey governor, during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center, at the National 9/11 Memorial and Museum in New York, Sept. 11, 2018. U.S. Ambassador to the United Nations Nikki Haley (L) is also pictured. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

A woman weeps by herself as she leans against a tree during a ceremony marking the 17th anniversary of the terrorist attacks on the United States. Tuesday, Sept. 11, 2018, at the World Trade Center in New York. (Photo: Mark Lennihan/AP)

Remembering 9/11 on the 17th anniversary of the attacks

A U.S. flag that few over the World Trade Center is presented during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center, at the National 9/11 Memorial and Museum in New York, Sept.11, 2018. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

Guests visit National 9/11 Memorial in front of stage they are listening to the readings of victims’ names, during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center, at the National 9/11 Memorial and Museum in New York, Sept.11, 2018. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

White House staff gather for a moment of silence on the South Lawn of the White House on Sept. 11, 2018, in remembrance of those lost on September 11, 2001. (Photo: Stephanie Chasez/White House)

Remembering 9/11 on the 17th anniversary of the attacks

A ribbon and roses are placed on one of the victims’ name at the north reflecting pool at the National 9/11 Memorial, during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center, at the National 9/11 Memorial and Museum in New York, Sept.11, 2018. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

A guest wipes a tear among names at the edge of the south reflecting pool at the National 9/11 Memorial and Museum during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center in New York, Sept. 11, 2018. (Photo: Brendan McDermid/Reuters)

Remembering 9/11 on the 17th anniversary of the attacks

Bianca Burton, center left, and Erin Schultheis walk around the Pepperdine University’s annual display of flags honoring the victims of the 9/11 terrorist attacks, Monday, Sept. 10, 2018, in Malibu, Calif. (Photo: Jae C. Hong/AP)

Remembering 9/11 on the 17th anniversary of the attacks

A New York City firefighter stands at attention in front of a memorial on the side of a firehouse adjacent to One World Trade Center and the 9/11 Memorial site during ceremonies on the anniversary of 9/11 terrorist attacks in New York on Tuesday, Sept. 11, 2018. (Photo: Craig Ruttle/AP)

Remembering 9/11 on the 17th anniversary of the attacks

A woman leaves flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States on Tuesday, Sept. 11, 2018, in New York. (Photo: Mark Lennihan/AP)

Remembering 9/11 on the 17th anniversary of the attacks

An American flag is unfurled down the side of the Pentagon to mark the 17th anniversary of the 9/11 terror attacks September 11, 2018 in Arlington, Va. (Photo: Alex Wong/Getty Images)

Remembering 9/11 on the 17th anniversary of the attacks

A U.S. flag is unfurled at sunrise on Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (Photo: Pablo Martinez Monsivais/AP)

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