Troubled singer Pete Doherty is showing no signs of curbing his drug-fuelled lifestyle, prompting speculation it might take its toll on his relationship with supermodel Kate Moss.

The 28-year-old Babyshambles star was arrested over the weekend on suspicion of possessing a class A drug.

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Pete Doherty, who faces jail time after being caught with class A drugs, leaves court today

Kate Moss with her troubled boyfriend Pete Doherty

He has appeared in court on a number of drug offences over the past six months and was praised in April by a judge for "more than co-operating" in his struggle to beat his addiction to hard substances.

The comments were made by District Judge Jane McIvor when the Babyshambles frontman appeared at Thames Magistrates' Court in east London for a review of a drug treatment order.

Doherty referred indirectly to the strain of his drug use on his relationship with Moss.

The singer told the court: "The people I'm closest to have had enough. They've said it's drugs or them."

A Scotland Yard spokesman said: "About 10pm on (Saturday) police stopped a vehicle in Kensington High Street.

He added: "The 28-year-old male driver was arrested on suspicion of possession of a class A drug. He was taken to a West London police station and subsequently bailed to return on a date in June."