Investigators to interview Mel Gibson again

Report: Extortion claim against his ex taken seriously

Maybe three times is the charm for Mel Gibson.

The LA County Sheriff's Department is looking for a third interview with him in connection with his claim that ex-girlfriend Oksana Grigorieva extorted him, according to TMZ.

The expected additional conversation is "strongly suggesting" that it is taking his claim seriously, the celebrity news site said. Overall, the investigation is at least two weeks away from rapping up -- possibly longer, it said.

When the investigation is complete it will be referred on to the District Attorney who will ultimately decide whether or not to charge Grigorieva with extortion and/or Gibson with domestic violence.