ET confirms that Robert Downey Jr. suffered an injury while filming 'Sherlock Holmes' on location in Britain.

A rep tells ET that Downey Jr. is doing fine and "all is well" after the incident in which the actor suffered a "minor injury."

Sources tell ET Downey Jr. was "hit while filming a fight scene but never lost consciousness." Sources say, "He got a few stitches and went right back to work!"

Guy Ritchie is directing the highly anticipated blockbuster, scheduled for release in November 2009, in which Downey Jr. plays the famed detective, with Rachel McAdams as his love interest.

Downey Jr. told ET earlier this year that the movie will present Holmes as more adventurous and less formal than previous screen incarnations. He also revealed he would have intense fight scenes in the film and noted that he has been training in martial arts for the past five years.