Amy Winehouse cautioned for assault

LONDON (Reuters) - Grammy-winning singer Amy Winehouse was cautioned for assault and released without charge on Saturday after spending the night in custody, police said.

A man said he was assaulted at in the early hours of Wednesday in north London and the singer presented herself at a central police station in central London on Friday for questioning.

Winehouse admitted common assault after slapping a man with her open hand and accepted the caution, her spokesman said in a statement.

"Amy was fully co-operative with enquiries and apologized for the incident," the statement added.

"She thanks the police for their professional handling of the matter."

The statement went on to say she was looking forward to recording new music. She is working on the theme song for the new James Bond film.

Winehouse, 24, whose private life and battle with drugs have overshadowed her recording success, is said to be worth an estimated 10 million pounds ($20 million) in the latest Sunday Times Rich List.

Her husband, Blake Fielder-Civil, 25, appeared in court on Friday charged with attempting to pervert the course of justice and inflicting grievous bodily harm. He denies the charges.

(Reporting by Avril Ormsby and Mike Collett-White; Editing by Andrew Dobbie)