As Britain Pursues Suspects, America Increases Security

July 2, 2007 — -- British authorities are hot in pursuit of suspects connected to three attempted terrorist attacks in the United Kingdom.

Authorities captured two more people today in connection with Friday's failed car bombs in London and Saturday's attack on Glasgow airport, bringing the total number of suspects in custody to seven.

This weekend, two suspects were captured at Glasgow airport, where a flaming Jeep Cherokee was driven into the airport's main terminal Saturday.

One of the suspects, who suffered severe burns after the attack, was taken to the nearby Royal Alexandra Hospital.

Police also arrested a 26-year-old man in Liverpool, and captured another man and woman speeding down a highway in northern England. One of those two has been identified as Mohammed Asha, a 26-year-old doctor who worked at a hospital in North Staffordshire. The woman arrested with him was believed to be his wife.

Investigators now believe all the plotters are foreigners of several Middle Eastern nationalities. They say the bombers were likely motivated by al Qaeda, but still have not established an operational link.

Police have established clear links between the attack in Glasgow Saturday and the failed car bombs in London Friday: Explosive devices containing gasoline and propane tanks were used in both incidents.

Sunday afternoon, police carried out a controlled explosion on a car parked near the Royal Alexandra Hospital. They said the vehicle might also be connected to the foiled attack.

According to a statement released by the Strathclyde Police, there was "no indication that the vehicle contained any explosives, however, as a precautionary measure … a controlled explosion was carried out."

ABC producer Matt McGarry reported hearing "several controlled explosions at the Royal Alexandra Hospital" in Glasgow.

"But," he said, "explosion is a misnomer, and police didn't actually 'blow up' the suspicious vehicle."

"It sounded much more like the pop of a shotgun blast," he said. "They were most likely just small detonations designed to set off any larger suspected bomb, which could be in the vehicle."