The White House has insisted that it knows "for a fact" that Iraq has weapons of mass destruction but provided no evidence, saying it will wait to see where UN inspections lead.

"The heart of the problem is Iraq is very good at hiding things," said White House spokesperson Ari Fleischer on Thursday.
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"We know for a fact that there are weapons there," he said, and added that the burden was on Iraqi President Saddam Hussein to disarm.

The US, keeping with past practice, did not reveal what evidence it possesses proving Iraq has weapons of mass destruction.

Washington says Iraq has chemical and biological weapons and is attempting to develop a nuclear bomb.

With a massive US military build-up proceeding in the Gulf region, US officials said President George W Bush has made no decision to go to war.

» IOL : Iraq guilty regardless of UN findings, says US