Warner Bros. Pictures has announced that a Batman special effects technician has died while working on The Dark Knight, according to BBC News.

In a statement, the studio said : "There was a fatal accident at a special effects facility for Batman: The Dark Knight. A technician on the film died when the truck he was in struck a tree following a test run."

RELATED: The Flash Director Teases Michael Keaton's Batman Return with Batsuit Mashup

The accident happened off-set and there was no filming taking place. The victim was on a camera truck which was following a stunt vehicle, believed to have been the Batmobile.

An ambulance spokeswoman said he was pronounced dead at a test track in Longcross, England.

The accident occurred on Monday and is being investigated by Surrey Police and the Health and Safety Executive (HSE). An HSE spokesman said: "It appears one vehicle was undertaking some stunt driving and another 4x4 provided the camera platform. The second vehicle and a camera operator were involved in a collision with a tree."

The Dark Knight starring Christian Bale and Michael Caine is scheduled to arrive in theatres on July 18, 2008.