(digitalspy.co.uk) - Christian Bale has requested privacy following his arrest for allegedly assaulting his mother and sister in London.The incident reportedly took place at the Dorchester Hotel on Sunday evening. The 34-year-old is on bail until September while police investigate the claims.Speaking at a press conference in Barcelona, the Dark Knight star said: "I would ask you to respect my privacy in the matter."He described the event as a "deeply personal matter".Bale greeted fans and spoke to journalists in Spain yesterday, but refused to comment on the arrest. A spokesperson for the actor denied the assault allegations earlier this week.