For the second time this year, someone has stolen actor Charlie Sheen's car and driven it off Mulholland Drive.

A passerby called police at 2:53 a.m. Tuesday to report a car had been driven off a cliff in the 13300 block of Mulholland Drive, said Los Angeles Police Officer Carlos Amaya.

Firefighters found the silver 2010 Mercedes-Benz at the foot of a cliff but did not find a driver or passengers inside or nearby.

Police traced the license plate number to Sheen. They went to his home a few miles away in Sherman Oaks, where the actor said he wasn't aware his vehicle was missing and said he had last seen the car in his driveway at 4 p.m.

It's the latest episode in a spate of troubles for Sheen, who has starred in the television comedy "Two and a Half Men" and the films "Platoon" and "Wall Street."