The unidentified driver of the Jeep, which burst into flames, is being treated for serious burns at Paisley's Royal Alexandra Hospital in Glasgow, where he is under arrest by armed police. A 27-year-old man also was arrested at the airport and was being held at a high-security police station in Glasgow.
It appeared authorities had been close on the trail of the airport bombers before the attack. Rental agent Daniel Gardiner, whose company leased a Glasgow-area home searched by police, said authorities contacted his firm just ahead of the airport attack, saying they had tracked phone records from it linked to the foiled London car bomb attacks.
Security in London was highly visible Monday morning, with long lines of cars forming behind police checkpoints on the London Bridge. Concrete car-blockers were in place protecting the Wimbledon tennis tournament.
Police in Glasgow said Monday that two more men were arrested the day before in the airport bomb attack investigation, bringing the total number of suspects in custody to seven.
Strathclyde police said the two men, aged 25 and 28, had been detained under the Prevention of Terrorism Act.
"This continues to be a fast-moving investigation," said Assistant Chief Constable John Malcolm.
Police Decline to Identify Suspects
Police have declined to identify any of the suspects, but British television and newspapers widely identified one as Mohammed Asha, a doctor working at the North Staffordshire Hospital, near the Midlands town of Newcastle-under-Lyme, where the police searched a house on Sunday. The hospital refused comment.
The man was arrested along with a 27-year-old woman when the police pulled over a car in a dramatic operation on the M6 highway in northwest England late on Saturday.
In Jordan, Asha's brother Ahmed told The Associated Press he had heard the media reports and said his 26-year-old sibling "is not a Muslim extremist, and he's not a fanatic."
"I can't believe this," he said. "It's nonsense because he has no terror connections."