A car bomb has struck Glasgow Airport.

A CAR bomb has struck Glasgow Airport.

A blazing Cherokee jeep containing two Asian-looking men crashed into the doors of the main terminal building.

Police are believed to be searching the airport car parks for other devices.

The attack is being treated as a "major terrorist incident".

A man with his clothes on fire got out of the vehicle and was restrained by passengers and police while others put out theflames with a fire extinguisher. Two men were later arrested.

The injured man was taken to the Royal Alexandra Hospital in Paisley where he is in a critical condition with severe burns.

Part of the hospital was later evacuated after a suspect device was found on the man's body.

A police spokesman said the device was being examined.

He added that there had been no warnings of an imminent attack.

The airport was closed and passengers were cleared from the terminal building amid fears that it was a terrorist attack.

One eye-witness, at the airport, said she had spoken to a man who claimed to have witnessed what happened.

"What he says he saw is a Cherokee jeep drive into the glass frontage of the airport," she told BBC News 24. "A man got out of it on fire - he said there were actually two Asian-looking men but this guy was the one that was on fire.

"Some holidaymaker tried to restrain him, then the police came over and wrestled him to the ground - the fire was burning through his clothes - and finally put him out with a fire extinguisher."

Eye witness Fiona Tracey said there were injuries in the incident.

"There were people injured, because I've seen them lying on the road," she told Sky News.

The incident came as police in London continued to search for terrorists who planted two car bombs which failed to detonate in the heart of the capital.

A spokesman for the airport's operators, the British Airports Authority, said emergency services were at the scene.

He said: "A car is on fire at the entrance to the terminal and there is considerable smoke damage to the terminal. The terminal has been evacuated as a result of this and all flights have now been suspended. This is the start of the busy summer holiday period, although Saturdays are less busy than week days.

"But this will cause disruption and our advice to passengers is to check with their airline to establish if their flight will be operating."

Another eyewitness, taxi driver Ian Crosby, said he was in no doubt that it was a terrorist attack.

"It looks to me like these people were intent on doing some serious damage," he told the BBC. "There was smoke coming from inside of the back seats," he said.

"Immediately I realised this was a terrorist attack. Somebody had planned this. This was no accident."

One suspect is understood to be detained at the high-security Govan police station while a second is believed to be receiving treatment at the Royal Alexandra Hospital in Paisley.

A number of people are stuck on aeroplanes and on the airport strip while others have been told they might not be able to leave the airport complex until at least 2100 BST.

Edinburgh Airport has been closed to vehicles which are being turned away on approach however, flights are operating as normal.