US police have said they are evaluating claims that Hollywood star Mel Gibson allegedly hit his ex-girlfriend. A recording, which a US website claims was Gibson on the phone to Oksana Grigorieva, has emerged. He is allegedly heard verbally abusing her. Los Angeles County Sheriff's Department spokesman Steve Whitmore said officers will "review" the recordings as part of an investigation. A spokesman for Gibson has declined to comment on the claims. "Anything that is connected to the case we will investigate," Mr Whitmore said. Last week, RadarOnline.com posted a recording which it claimed was Gibson. A man can be heard telling Grigorieva he thought she was dressing too provocatively using explicit and offensive language. The former couple are currently battling each other for custody of their 8-month-old daughter. In 2006 a leaked police report quoted Gibson making anti-Semitic comments to a Jewish police officer, who was arresting him for drink driving. Source: BBC