Amidst confusion over the identity of the man who drove a burning jeep into Glasgow airport during a terror attack, The New York Times on Friday reported that he was a Lebanese man employed in a hospital in that city.

The report said staff at Glasgow's Royal Alexandra Hospital had identified the man as a Lebanese physician named Khalid Ahmed who was employed at the same facility.

He is now being treated for severe burns suffered when he set himself on fire after crashing the jeep loaded with crude bombs into the airport.

Investigators in London [Images] are trying to determine whether two suspects arrested during the Glasgow attack -- Bilal Abdulla and Ahmed -- had taken part in attempted bombings in the British capital and whether they were the ringleaders of a cell containing all the suspects.

As police questioned eight suspects -- described in the report as six from the Middle East and two Indians -- British intelligence agencies focussed on their international links, an intelligence official and a government official were quoted as saying by the paper.

MI5, Britain's domestic intelligence agency, said on its website that some Britons had joined the Iraqi insurgency.

"In the longer term, it is possible that they may later return to the UK and consider mounting attacks here," it said.

In London, a Metropolitan Police spokesman refused to confirm the story saying they have not identified all suspects.