Lawyers for Canadian terror suspect Omar Khadr are refusing to comment on media reports that U.S. Secretary of State Hillary Clinton is personally arranging a deal to resolve the case.

Nate Whitling, a Canadian lawyer for the Toronto-born Khadr, steadfastly refused to speculate about Clinton's involvement in a possible deal that would see the 24-year-old plead guilty to murdering a U.S. soldier in Afghanistan in exchange for serving most of his sentence in Canada.

"I'm not commenting about the talks," Whitling told CTV.ca in a telephone interview from his Edmonton office. "If there's a deal it will become apparent in court on Monday."

Khadr, who was only 15 when he was captured after a firefight at a remote Afghan compound in 2002, has spent eight years at the U.S. military prison in Guantanamo Bay awaiting trial on terrorism charges.

He is believed to be the only Western citizen remaining in Guantanamo, but the Canadian government has so far refused to seek his extradition or repatriation.

CNN quoted an unnamed U.S. State Department source saying that Clinton was reaching out to Ottawa to bring the Khadr case to a close, even discussing it with Canadian Foreign Affairs Minister Laurence Cannon on Wednesday night.

The network said Khadr must decide whether to sign onto a deal negotiated by prosecution and defence lawyers that would have him serve one year in U.S. custody and seven more in Canadian custody.

The all-news network said Canadian officials were "closely involved" in the plea bargain talks.

But officials in both the U.S. and Canada say there have been no late-night phone calls between Clinton and Cannon on the case and a State Department spokesman said bluntly: "There was no such call."

Cannon's office reiterated its position on Khadr, saying they would not intervene until the U.S. court is finished with his case. "Our position has not changed," said Catherine Loubier, spokeswoman for the minister.

Khadr is to appear Monday before Guantanamo military judge Col. Patrick Parrish to say whether he'll sign off on the deal. He has already refused a previous deal that would have required him to admit guilt.