Amy Winehouse broke down in tears this afternoon as she prepared to be questioned by police over claims she attacked a man after a night out.

The troubled singer, 24, is expected to be arrested after a 38-year-old man alleged she assaulted him.

She was clearly distressed as she was driven away from her home in Camden, North London.

The assault claim is the latest blow for the singer, who is supposed to battling drug addiction.

Police launched in inquiry after it was reported that Winehouse assaulted two people outside a bar early on Wednesday morning. She allegedly punched one man inside a bar near her home and head-butted a Good Samaratin who tried to hail a cab for her.

Assault carries a six-month jail sentence.

Pictures from last night!: Amy Winehouse goes on another late night bender in Camden visiting the same pub, ‘The Good Mixer’ as the night before. She stocked up on disposable lighters at her local newsagent and was guided home by friends pulling bizarre facial expressions, and sniggered uncontrollably.