RCMP say they're investigating after they found several people "suffering" from exposure to what appeared to be a "noxious substance" Monday afternoon.
Just after 4 p.m. Monday, police said they got a call about an alleged assault in downtown Yellowknife, near Boston Pizza.
When police arrived, they "found a group of people suffering from being exposed to what appeared to be a noxious substance," RCMP said in an email to CBC.
RCMP say police dogs were called to help investigate.
RCMP did not specify what the substance was or if anyone was treated for injuries.
People 'obviously in distress'
Katherine Robinson, who works in the Joe Tobie Building across from Boston Pizza, says she didn't see what happened, but saw the aftermath.
She said she saw a young woman and young man "obviously in distress."
"There were people running in and out [of Boston Pizza] grabbing towels," she told CBC. "There was a lady standing there holding up the young lady ... gently pouring water onto her face."
Robinson says, though it was clearly a horrible situation, she was amazed by the people who were helping.
"It didn't look like it was necessarily a group of friends," she said.
"In this really crappy situation, there are people that just help ... It was just really lovely to see that kind of kindness."
RCMP say they're continuing to investigate and have not laid charges.