The Expendables 2 stuntman killed on set

Sofia - Police in Bulgaria say a stuntman has died and another has been seriously injured while filming an explosion scene on the set of The Expendables 2.

Police said on Friday the two men, whose names and nationalities were not disclosed, were performing a stunt involving an explosion on an inflatable boat on the Ognyanovo Dam, just outside the capital, Sofia. The incident occurred late on Thursday.

The injured man has undergone a five-hour operation and his condition was stable, doctors are quoted by the BTA news agency as saying.

In a statement, the production company Nu Image/Millennium Films confirmed the "unfortunate accident," adding, "the filmmakers are working closely with the authorities".

The film stars Sylvester Stallone, Bruce Willis and Arnold Schwarzenegger.