George Galloway has denied that he received oil vouchers in return for supporting Saddam Hussein's regime.

The strong denial came after US congress revealed what it claimed was new evidence indicating that the Respect MP was granted millions of barrels of lucrative Iraqi oil allocations.

A report by the senate permanent sub-committee, which also names Charles Pasqua, a former French interior minister, suggests that Galloway received allocations for 20 million barrels in oil allocations while Pasqua received 11 million barrels.

The senate committee said: "These allocation holders essentially gatekeepers to Iraqi oil would sell their right to buy under-priced Iraqi crude to traditional oil producers and in turn received a 'commission', which typically ranged from three to 30 cents per barrel."

According to the report, in April 2005, Taha Yassin Ramadan, the former vice-president of Iraq, told the sub-committee that Galloway had been granted oil allocations "because of his opinions about Iraq" and because he"want[ed] to lift the [trade] embargo against Iraq".

The committee also said there was "some evidence" Galloway "appeared to use a charity for children's leukaemia to conceal payments associated with at least one such allocation". That charity was called the Mariam Appeal.

Galloway described the Senate committee as a "lickspittle Republican committee, acting on the wishes of George W. Bush".

He told the Financial Times: "Let me repeat, I have never traded in a barrel of oil, or any vouchers for it."

The MP last week defeated Labour party candidate Oona King on an anti-Iraq war platform in the general election. He was elected MP for the constituency of Bethnal Green and Bow representing his own political party, Respect.