Bilal Abdullah, 28, of Paisley, Mohammed Asha, 27, of Newcastle-under-Lyme, and Sabeel Ahmed, 26, of Liverpool appeared via video link at the hearing at London's Old Bailey.

None of them formally entered a plea.

The court heard their trial is likely to take place at Woolwich Crown Court in October.

Abdullah and Asha are accused of conspiracy to cause explosions likely to endanger life.

Ahmed is charged with possessing information that could have prevented an act of terrorism.

Mr Abdullah, an Iraqi doctor who worked at the Royal Alexandra Hospital in Paisley, was arrested at Glasgow Airport on 30 June last year after a Jeep was driven into the doors of the main terminal building.

Later that same day, Jordanian Dr Asha was arrested in Cheshire on the M6 motorway.

The previous day, police in central London found two cars laden with gas canisters and fuel.

Dr Ahmed, who is originally from India, worked at Halton Hospital in Runcorn, Cheshire.

His brother Kafeel Ahmed, 27, died of burns after being injured in the Glasgow attack.