Foreign Minister Abu Bakr al-Qirbi on Thursday said Yemen was looking into whether Yemeni law still applied to Jabel al-Baneh, but pending a decision nothing prevented the US from questioning him.

"We will look at this from a legal aspect. But until a final solution is reached, this should not prevent cooperation with the US in the interrogation of Jabel al-Baneh to find out if he is linked to any terrorist acts," Qirbi said.

Prized prisoner

Al-Baneh, who is accused by the US of heading the "Lackawanna six-cell" and had a $5 million prize on his head, has been under interrogation in a Yemeni prison for several weeks.

Members of the "Lackawanna six" are all US citizens of Yemeni descent, accused by US of attending a "terrorist" training camp affiliated with Usama bin Ladin's al-Qaida network in Afghanistan in the spring of 2001.

The group was rounded up in Lackawanna, south of Buffalo, New York in September 2002 and accused by the FBI of being part of an al-Qaida sleeper cell.