Kiefer confesses his alcohol worries

Kiefer Sutherland has confessed that he has problems with alcohol.

The actor revealed that he drinks to let off steam after working 14-hour days on his hit US series, 24.

"It's a dangerous thing, thinking that if you work really hard you should be able to reward yourself by going out and getting s***-faced," he told Rolling Stone magazine. "It's right out of the textbook of problem drinkers. The next day, I go, 'Oh God, don't let me do that again.' So why do I do it again and again?"