Pop star George Michael has beenfound passed out in his car and allegedly in possession of drugs, for the second time this year, London's Metropolitan Police force said today.

Motorists called police at about 3:20 am (0850 IST) yesterday to report that the 43-year-old former Wham! frontman's car was causing an obstruction at traffic lights in northwest London.

Michael was then found slumped over the steering wheel of his car and arrested on suspicion of being unfit to drive, and possession of what is believed to be cannabis.

The popstar was taken to hospital before being cautioned for the drug offence and released on police bail pending further inquiries about his fitness to drive.

It is the second time this year that the singer has beenfound in a similar state at the wheel of his car. Police cautioned him in February for possessing cannabis in central London.

In April, he was in the news again when he collided with three parked cars near his home in north London.