Charlie Sheen

Charlie Sheen was taken to the hospital early Thursday morning. He was seen leaving on a stretcher and being loaded into an ambulance.

"All I know is he was having severe abdominal pains and went to the hospital," his rep told TVGuide.com.

CBS president: "We have a high level of concern" for Charlie Sheen

Sheen was taken to Cedars-Sinai Hospital in Los Angeles.

The Two and a Half Men star told a source quoted by Extra: "I'm not dying." His friend, Steve Brodersen, told the TV newsmagazine Sheen's abdominal pain was the result of a hernia injury, made worse when Sheen laughed too hard at the TV.

CBS President: "We have a high level of concern" for Charlie Sheen

Sheen's ex-wife, Denise Richards, tweeted late Thursday, "Thank you so much for you kind and supportive messages ... it means a lot ..."