Rock star Pete Doherty has been arrested by police on suspicion of possessing class A drugs.
Pete Doherty was a member of the Libertines until they split in 2004
Babyshambles singer Doherty, 26, was stopped while driving a car in Ealing, west London, early on Wednesday.
A police spokeswoman said officers stopped the vehicle because it was being driven "in an erratic manner" and recovered "substances" from the scene.
Doherty was taken to a west London police station and released on bail. He is due to report back in January.
The spokeswoman said police had stopped a car in Cleveland Road, Ealing.
"Substances were recovered from the 26-year-old male driver and the vehicle," she said.
"He was arrested for alleged possession of class A drugs.
"He was taken to a west London police station and later bailed to return pending further inquiries."
Doherty has recently had an on-off relationship with model Kate Moss.
Babyshambles released their debut album last month.