Batman's Christian Bale was arrested in London Tuesday, following assault allegations reportedly made by his own mother and sister.
He was released from the precinct station later in the afternoon, and he is to return to a station in September, pending further inquiry, a police rep tells PEOPLE.
Bale, 34, allegedly lashed out at his mother Jenny, 61, and sister Sharon, 40, on Sunday at London's Dorchester hotel, where the actor was staying before Monday's U.K. premiere of The Dark Knight.
According to Britain's The Sun newspaper, Bale's mother and sister went to a police station in Hampshire Monday, which turned the case over to London officers.
“A 34-year-old man attended a central London police station this morning, by appointment, and was arrested in connection with an allegation of assault," a police spokesman told PEOPLE. "He is currently in custody.”
It is a policy in England to arrest a suspect before questioning him in connection to a possible crime. Bale has not been formally charged, therefore the police did not release his name.
Late afternoon Tuesday, a police spokeswoman told PEOPLE: "A 34-year-man has been [asked] to return to a central London police station on a date in September, pending further inquiries."
At 4:20 p.m. London time, Bale, with a 10-man police escort, was taken from the Belgravia police station's rear exit into a blacked-out silver Mercedes people carrier and transported to the Dorchester hotel, where he was driven into the underground entrance.
Monday – the morning after the alleged incident – Bale appeared on GMTV, a U.K. morning show. Bloggers called the actor grumpy, but a GMTV spokesman told PEOPLE, "He didn't seem on edge."
Bale is scheduled to be in Barcelona Thursday for the record-breaking film's Spanish-language premiere.