By Zahra Hosseinian and Fredrik Dahl
TEHRAN (Reuters) - Iran test-fired nine missiles on Wednesday and warned the United States and Israel it was ready to retaliate for any attack over its disputed nuclear projects.
Washington, which says Iran seeks atomic bombs, told Tehran to halt further tests. Iran, the world's fourth largest oil producer, says its nuclear program is only for electricity.
Iran's missile tests rattled oil markets, helping crude prices to rebound about $2 a barrel after recent falls.
Speculation that Israel could bomb Iran has mounted since a big Israeli air drill last month. U.S. leaders have not ruled out military options if diplomacy fails to end the nuclear row.
Revolutionary Guards air force commander Hossein Salami said in televised comments that thousands of missiles were ready to be fired at "pre-determined targets." Missiles were shown soaring from desert launchpads, leaving long vapor trails.
"We warn the enemies who intend to threaten us with military exercises and empty psychological operations that our hand will always be on the trigger and our missiles will always be ready to launch," he said, according to ISNA news agency.
Defence Minister Mostafa Mohammad Najjar, cited by Fars news agency, said Iran's missile power was only defensive and was "at the service of peace, stability and security in the region."
The White House told Iran to "refrain from further missile tests if they truly seek to gain the trust of the world."
But the United States gave no hint to leaders of a group of eight rich nations meeting in Japan this week that it planned to attack Iran, Italian Prime Minister Silvio Berlusconi said.
MISSILE SHIELD
Secretary of State Condoleezza Rice suggested the tests justified plans for U.S. plans for an anti-missile shield, which Russia firmly opposes.
"Those who say that there is no Iranian threat against which to be building missile defenses perhaps ought to talk to the Iranians about ... the range of the missiles that they test fired," Rice said in Bulgaria.
France, Germany and Italy joined criticism of Iran.
"These are very dangerous missiles -- that's why the international community and not just Israel has an interest in blocking this escalation in a definitive way," Italian Foreign Minister Franco Frattini said in Ramallah, in the West Bank.
France said the tests heightened international concerns, while Germany voiced regret that Iran had responded to an offer of incentives by world powers with a "gesture of ill will."
Democratic presidential candidate Barack Obama called for harsher measures against Tehran after the tests. "Iran is a great threat. We have to make sure we are working with our allies to apply tightened pressure on Iran," he declared.
His Republican opponent John McCain voiced support for the missile shield as a defense against Iranian missiles, saying the tests "demonstrate the need for effective missile defense now and in the future, and this includes missile defense in Europe as is planned with the Czech Republic and Poland."
Iran's State Press TV said the "highly advanced" missiles tested by the Guards included a "new" Shahab 3 missile, which officials have said could reach targets 2,000 km (1,250 miles) away. Iran has said Israel and U.S. bases are in its range.
Some U.S. facilities across the Gulf are little more than 200 km from Iran's coast. The United States has air and naval bases in nearby Arab states, including Qatar and Bahrain.
Iran has said U.S. forces are vulnerable because of their presence in two neighboring countries, Iraq and Afghanistan.
Israel, believed to be the Middle East's only nuclear-armed power, has vowed to prevent Iran from acquiring an atomic bomb.
"Israel does not threaten Iran, but the Iranian nuclear program, combined with their aggressive ballistic missile program, is a matter of grave concern," Mark Regev, spokesman for Israeli Prime Minister Ehud Olmert, said after the tests.
World powers have offered Iran incentives if it suspends uranium enrichment, a demand rejected by Tehran.
Fars said EU foreign policy chief Javier Solana would come to Iran on July 19 to discuss the incentives offer. But Solana's spokeswoman said there was no such plan.
Iran has threatened to close the Strait of Hormuz, conduit for about 40 percent of globally traded oil, if it is attacked. The U.S. military says it will prevent any such action.
The war of words heightens risks that a misunderstanding or a minor clash in the Gulf, for instance, could get out of hand.
Analysts say Iran's military technology often involves improving weaponry originating in China and North Korea.
"They are some way away yet from threatening Israel or U.S. bases," said London-based independent analyst Paul Beaver, noting that guidance systems over longer ranges needed work.
(Additional reporting by Hossein Jaseb, and Paolo Biondi in Tokayo, Japan; writing by Alistair Lyon)
Copyright © 2008 Reuters Limited. All rights reserved. Republication or redistribution of Reuters content is expressly prohibited without the prior written consent of Reuters. Reuters shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.