LOS ANGELES - Charlie Sheen is back in rehab and his hit CBS TV sitcom, "Two and a Half Men," is on hold, one day after a 911 caller said the actor was intoxicated and in pain.

According to a person familiar with the emergency call Thursday, a neighbour of Sheen's informed a 911 operator that the actor was "intoxicated" and complaining of abdominal and chest pains.

The person familiar with the call, who was not authorized to publicly discuss details, spoke Friday on condition of anonymity. A Los Angeles Fire Department spokesman says copies of the call probably won't be ready for release by the department until Monday.

The 45-year-old Sheen was treated at a hospital Thursday, with his publicist citing the actor's history of hernia problems. The publicist, Stan Rosenfield, says Sheen voluntarily entered a rehabilitation centre Friday.