London - The husband of British retro-soul singer Amy Winehouse was released from jail Wednesday and immediately checked into a drug rehabilitation clinic, the Press Association reported.

Blake Fielder-Civil, 26, was sentenced for helping to beat up a pub landlord and jailed for 27 months by a court in London three months ago. He had already spent nine months in jail on remand when he was sentenced.

His admission to a rehabilitation clinic was part of the terms of his release, the report said.

"Blake Fielder-Civil has been released on licence. He has to go to rehab. He will be there for at least a couple of months," it quoted an unidentified source as saying.

Winehouse, 24, who has a troubled history of drug and alcohol addiction, was not at her husband's side when he walked out of Edmund's Hill Prison in the south-eastern county of Suffolk.

Fielder-Civil admitted assaulting pub landlord James King in London in June, 2006, and trying to bribe King with money to withdraw his complaints against him.

The court heard that Fielder-Civil was high on alcohol and cocaine when the attack took place, but that Winehouse and her husband were determined to rebuild their lives and "divorce themselves from hard drugs." (dpa)