Charlie Sheen Returns To Rehab

'Two and a Half Men' has been put on immediate hiatus.

Hours after Charlie Sheen was released from the hospital following a hiatal hernia, he has checked himself into rehab.

According to Deadline, Sheen's publicist revealed that the "Two and a Half Men" star had "voluntarily entered an undisclosed rehabilitation center." In a statement to the site, Sheen's rep said he was "most grateful to all who have expressed their concern" but asked that his privacy be respected at this time.

Variety reports that CBS, the network that produces "Two and a Half Men," has announced that the show has been put on an immediate hiatus, due to their lead actor's return to rehab.

It's been a rough few months for Sheen. Just before he was rushed to the hospital Thursday, the actor was said to have been partying hard with a number of adult-film stars at his Hollywood home for several days. One of the porn stars, Kacey Jordan, reportedly tweeted a provocative photo of herself from inside Sheen's home a short time before the star's collapse.

This is the TV actor's second trip to rehab in less than a year. Last February, Sheen checked into rehab as a "preventative measure." Sheen's time spent at the Promises of Malibu drug-treatment center was counted toward a 30-day jail sentence imposed by a Colorado judge in connection to domestic-violence charges. Sheen was arrested on Christmas Day 2009 after then-wife Brooke Mueller told police the actor had threatened her with a knife.

Sheen was also hospitalized back in October after suffering what his spokesperson described as an "adverse allergic reaction" to prescription medication.