UK threat level

Jun. 30 - Britain is on high alert, after a blazing car is driven into a Glasgow airport terminal.

Prime Minister Gordon Brown has urged the public to be vigilant, after a four-wheel-drive vehicle rammed into Glasgow airport's main terminal and exploded in flames. Police described the incident as an "attack". A police spokeswoman said two people, described by witnesses as "Asian", were arrested following the incident. Britain has raised its national security rating to "critical", meaning another attack is expected imminently.

Jean Di Marino reports.