Crewmembers were shooting an action scene involving a helicopter for "A Good Day to Die Hard", which saw a building set ablaze for the sequence, reported Daily Express.
No one was injured in the blaze, which was soon extinguished, and none of the film's main stars, including Willis and Patrick Stewart were onset at the time of the incident.
"There was a fire on the set of 'A Good Day to Die Hard' in Hungary. No one was injured by the flames, which occurred during a pyrotechnics stunt just after midnight on July 5, and were contained a short while later.
"Bruce Willis, was not on set, nor were other principal cast. Principal photography on the movie began in April in Budapest, and is expected to wrap late summer," a statement released by 20th Century Fox bosses reads.
"A Good Day to Die Hard" is the fifth movie in the franchise and is due to hit cinemas in February 2013.
