A special effects technician was killed in a crash during production of the latest Batman film, The Dark Knight.

According to Fox News, the victim died when a truck carrying a camera platform crashed into a tree while following a stunt vehicle on Monday. The crash did not occur during filming and no actors were involved in the accident. The incident occurred during a test run at a racetrack near Chertsey, south of London.

The studio said that producers, cast and crew “are deeply saddened by this tragedy and their hearts and prayers go out to the family and loved ones of the deceased.”