Television star Kelsey Grammer is back in hospital with an irregular heartbeat, two months after suffering a heart attack the actor has said nearly killed him, a celebrity news program reported on Monday.

The 53-year-old actor, best known from "Cheers" and his sitcom "Frasier," has checked into a hospital in New York after feeling faint, "Entertainment Tonight" said.

"(Grammer) is being treated for an irregular heartbeat, which we've learned could be a result of medication he was taking for his recent heart attack," the program said in a statement.

Grammer's spokesman Stan Rosenfield was not immediately available for comment.