Arnold Schwarzenegger halted filming on his new movie on Thursday after he was injured on-set.

The action man was forced to seek medical attention for a gash on his forehead, and he shared a picture of the cut with his fans on Twitter.com.

In an accompanying post, the star writes, "Got a little banged up on set today. Thanks to the medical staff who got me back in action an hour later!"

Schwarzenegger has been working on Western movie The Last Stand and The Expendables sequel recently, but he did not indicate which set he was on when he suffered the injury.