'Diff'rent Strokes' actor Gary Coleman is critically ill in hospital.

The American actor - best known for his role as Arnold Jackson in the US sitcom - was admitted to the intensive care unit of the Utah Valley Regional Medical Center on Wednesday (26.05.10) after sustaining a head injury during a fall.

His manager said: "We're just getting bits and pieces right now, so there's really nothing to report."

In February, 42-year-old Coleman - who has experienced health problems all his life as a result of the kidney disease he suffered as a child - had a seizure on the set of TV show 'The Insider' and also had to undergo heart surgery last year.

In January, Coleman was arrested on a domestic violence charge, although it wasn't revealed who the victim was.

The former child star has also had a rocky marriage to actress Shannon Price, 24, whom he wed in secret in August 2007.

Their marriage has been beset with public and private arguments, and they appeared on US TV show 'Divorce Court' to discuss their problems.

Price was arrested on domestic violence charges last July after an incident with her husband. She had locked the 4ft 8ins actor out of their house and police said his bedroom was trashed.

Coleman was also arrested in Utah in 2008 after a man claimed he'd tried to run over him in a car park after he tried to take a picture with him. The case was reportedly settled out of court.