Maher Arar says he has "nothing to hide" and has again called on Ottawa to hold a public inquiry to clear him of allegations he's linked to global terrorism.

In a statement released by his supporters, Arar says he's tired of reports of Canadian officials "who continue to make baseless allegations" against him.

A report in the National Post Tuesday quoted intelligence sources from Canada and the U.S. who claim to be "100 per cent sure" Arar trained with al Qaeda in Afghanistan.

The officials alleged Arar travelled to Pakistan in the early 1990's, then entered Afghanistan to train at the al Qaeda base known as the Khaldun camp.

Khaldun is the same camp where those who bombed the World Trade Center in 1993 and two U.S. embassies in East Africa in 1998 trained.

Arar is challenging the unnamed officials to come forward with their claims at a full public inquiry.

"I have nothing to hide and I want a public inquiry. If they have nothing to hide, they should want one, too," said Arar.

"If the Canadian agencies are so confident they did nothing wrong, why don't they back my call for a public inquiry so we can finally get the truth out?" he wondered.

Arar, 33, was detained as a terror suspect at a New York airport in September 2002, while returning from a trip to Tunisia. The U.S. government deported the Ottawa resident to his native country of Syria. He spent 10 months in jail where he says he was repeatedly tortured.

The RCMP has said Arar was on an international terrorist watch list. The sources say that while the RCMP shared information on Arar with the U.S., they did not encourage the Americans to deport him to Syria.

The Commission for Public Complaints against the RCMP has launched an inquiry into its involvement in the Arar case, as has the watchdog for Canada's spy agency, CSIS.

So far, there are no plans for a full-scale public inquiry into Arar's arrest and deportation to Syria.

The Post quoted sources saying Prime Minister Paul Martin has been extensively briefed on Arar's activities abroad -- suggesting this is why the government has backed off holding an inquiry.