Mel Gibson is being investigated over domestic violence claims.

The Los Angeles County Sheriff’s Department has decided to look into allegations the actor assaulted ex-girlfriend Oksana Grigorieva during incidents dating back to January and February. According to TMZ, the Sheriff’s Department has opened a “spousal abuse” inquiry and Oksana was interviewed by deputies on Monday.

She is believed to have told officers she was the victim of violence on several occasions and made the decision to secretly tape Mel’s behavior when it got really bad because she was frightened for her safety.A statement has now been released revealing investigators are “currently gathering information regarding the allegations.”

It was reported on Thursday that Mel hit Oksana while she was holding their baby daughter Lucia. A tape recording from January allegedly reveals the Russian singer asking the 54-year-old actor what he is doing hitting her while she is carrying the tot, who was born in October 2009.

Oksana, 40, can apparently be heard on the tape saying, “What kind of man is that who would hit a woman while she is holding a child in her hands, hitting her twice in the face? What kind of man is that?” To which the star answers, “You know what - you f***ing deserved it.”

Mel has also been accused of breaking his former partner’s teeth during another violent row.