Amy Winehouse has been released from police custody after being arrested on suspicion of drug offences, police said today.

The Grammy-winning soul singer, who was cautioned for assault less than two weeks ago, was held after she handed herself in at an East London police station on Wednesday and was questioned by detectives for more than nine hours.

Scotland Yard said that the arrest was in connection with a video of the singer that was passed to them in January. Footage obtained and published by The Sun appeared to show the 24-year-old singer inhaling fumes from a crack pipe after a 19-minute drugs binge. She was also allegedly shown snorting Ecstasy and cocaine and admitting to having taken six Valium. Winehouse has not been charged.

“At 1 pm on Wednesday, a 24-year-old woman attended a London police station by arrangement,” police said in a statement. “She was arrested in connection with alleged possession of a controlled drug.”

A spokeswoman said today that the woman, based in Camden, north London, was released on bail until later this month pending further inquiries.

Winehouse received a police caution two weeks ago and apologised after slapping a man. The talented but troubled singer was arrested on April 25 and spent the night in a cell at Holborn Police Station, Central London, before being questioned.

She was alleged to have headbutted a man, who had hailed a taxi for her, before punching a second man. A spokesman for the singer said that she had “slapped” a man with an open hand.

Blake Fielder-Civil, 25, the singer’s husband, is on remand awaiting trial for charges of assault and perverting the course of justice.

The latest Sunday Times Rich List said Winehouse, whose battle against drug addiction has often overshadowed her recording success, is worth about £10 million pounds.

She did not attend the Grammy Awards in Los Angeles in February, but still managed five big wins, including record and song of the year for Rehab and best pop vocal album for her breakthrough release, Back to Black.

The singer suffered a blow last week when Mark Ronson, the producer of Back to Black, reportedly said that she was in no fit state to record. They had been expected to record the theme to the new Bond film.

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