LONDON, England (CNN) -- "Dark Knight" star Christian Bale has denied allegations by his mother and sister that he assaulted them, and he is cooperating with police, Bale's publicists said Tuesday.

Christian Bale leaves a central London police station after being arrested and questioned by police.

Bale has not been charged with any crime, his publicists said.

"Christian Bale attended a London police station today, on a voluntary basis, in order to assist with an allegation that had been made against him to the police by his mother and sister," the statement said.

British media reported that police questioned Bale over an allegation that he assaulted his mother and sister at a London hotel a day before the European premiere of "The Dark Knight."

Asked about the reports, a spokeswoman for London's Metropolitan Police said a 34-year-old man was arrested in connection with an allegation of assault but would not divulge his name.

The statement from Bale's publicists did not say whether an arrest had been made.

"Mr. Bale, who denies the allegation, cooperated throughout, gave his account in full of the events in question and has left the station without any charge being made against him by the police," it said.

Bale would have no further comment, the statement said.

A records check turned up no criminal record for Bale in Los Angeles, according to The Associated Press.

A woman believed to be Bale's sister Sharon said "it's a family matter" from her home in Corfe Mullen, 110 miles southwest of London, according to the AP. A man who answered the door at the home of his mother, Jenny Bale, in nearby Bournemouth said she did not want to comment, the AP reported.

Bale is in London after the British premiere of "The Dark Knight," the latest Batman movie and a Warner Brothers film. Warner Brothers is owned by Time Warner, also the parent company of CNN.

Bale plays Bruce Wayne/Batman in "The Dark Knight," which co-stars the late Heath Ledger as the Joker. Watch Bale talk about playing Batman »

The film cashed-in with a record-breaking $158.4 million at the box office in its opening weekend.

Bale reprised the role of Gotham's superhero, which he played in "Batman Begins."

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