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Comic Chappelle In Mental Clinic?

Comedy Central star Dave Chappelle has checked himself into a mental health facility in South Africa, the magazine Entertainment Weekly reported on Wednesday.

The comedian's whereabouts and condition have been unknown since Comedy Central abruptly announced last week that the planned May 31 launch of the third season of "Chappelle's Show" had been postponed and production halted.

Chappelle flew from Newark, New Jersey, to South Africa on April 28 for treatment, said the magazine, quoting a source close to the show it would not identify. Entertainment Weekly said it had corroborating sources for its story.

"We don't know where he is," Comedy Central spokesman Tony Fox said. "We've heard about South Africa. We don't know. We haven't talked to Dave."

Chappelle's spokesman, Matt Labov, would not comment on the magazine's story.

"It seems like the issues he's contending with are really quite serious," said Dade Hayes, a senior editor at Entertainment Weekly. "It isn't a case of him spending a weekend someplace recuperating from exhaustion."

The magazine's sources say Chappelle is still in the facility, which was not named, Hayes said. Chappelle's representatives have denied that the comedian was abusing drugs.

Chappelle reportedly signed a $50 million deal with Comedy Central for two more seasons of his show, a payday made possible because of the explosive sales of the show's first season DVD.

The magazine said Chappelle had shot four to five episodes' worth of sketches for the new season, but none of its onstage introductions.

Last December, Chappelle told CBS' "60 Minutes about a time in his life which he called a "terrible decline." His father had just died and he'd recently walked away from a television deal with Fox.

It was around this time that Chappelle retreated to his sanctuary in Ohio. He left behind the network TV deals, the cliché movie roles, and the heavy partying. And he left it behind to spend more time with his friends and family and to take a good, hard look at himself.

"I was looking at myself for the first time, and I didn't like everything that I saw. But you got to do that in your life," Chappelle told 60 Minutes' Bob Simon. "You know, be able to do something great in your life, you're gonna have to realize your failures. You're gonna have to embrace them and figure out how to overcome it."

Comedy Central, like, is owned by Viacom, Inc.