Hungarian police announced today that they had seized a shipment of weapons stored in a warehouse near Budapest airport, only for a film producer to reveal they were props for a new Brad Pitt movie.

Police told a press conference they had found and confiscated the arsenal -- which included machine guns, hand guns and sniper guns but no ammunition -- at a customs-free area near the airport during a raid at dawn on Monday.

"The military guns arrived from London on Saturday at Liszt Ferenc International Airport," Janos Hajdu, director of the police's Counterterrorism Centre, was cited by Hungarian newswire MTI, adding that the aircraft transporting the weapons left the airport right after unloading.

The Hungarian police had contacted its counterparts in Britain for more information, he also said.

As it turns out, the weapons were actually meant as props for a new zombie movie featuring Hollywood star Brad Pitt, "World War Z", a film producer told local television RTL Klub.

Shooting in Hungary for the film was to begin Monday evening in an industrial district of Budapest, according to RTL Klub.

It was not delayed by the police action, the producer said.