A US-based Norwegian weapons inspector accuses the USA and Secretary of State Colin Powell with providing the United Nations Security Council with incorrect and misleading information about Iraq's possession of weapons of mass destruction (WMD), newspaper Dagbladet reports.

Joern Siljeholm, Ph.D. in environmental chemistry, risk analysis and toxicology, said that the USA's basis for going to war is thin indeed, and called it a slap in the face to the United Nations weapons inspectors.

Siljeholm told Dagbladet that Colin Powell's report to the Security Council on how Iraq camouflaged their WMD program was full of holes.

"Much of what he said was wrong. It did not match up at all with our information. The entire speech was misleading," Siljeholm said.

Asked if the Americans lied, Siljeholm said: "Lie is a strong word - but yes, the information Powell presented about Iraq's nuclear program was simply incorrect," Siljeholm said.

"We received much incomplete and poor intelligence information from the Americans, and our cooperation developed accordingly. Much of what has been claimed about WMDs has proven to be sheer nonsense. From what I have seen they are going to war on very little," Siljeholm told Dagbladet.

After 100 days in Iraq, Siljeholm, now a researcher at the Massachusetts Institute of Technology in Boston, is on holiday in Florida with his family.

"I strongly doubt that the American will find anything at all. In any case I doubt that they will find WMDs that constitute a military threat," Siljeholm said.

Siljeholm said that his thoughts are now with the Iraqi people he met, and who cooperated with the inspectors.

"It is a weary country with many weary people. The people want peace," Siljeholm said.