Singer Pete Doherty has been released on bail after his arrest on suspicion of administering noxious substances.
Pete Doherty is already on bail after being arrested last week
The Babyshambles frontman was arrested in east London after a newspaper published pictures allegedly showing him injecting drugs into a female fan.
He is already on police bail after being held on suspicion of possessing class A drugs last week.
Mr Doherty was arrested before he was due to play at an anti-racism concert in Trafalgar Square on Saturday.
A Scotland Yard spokeswoman said: "He was released on bail to return on a date in July pending further inquiries."