London: Two fibreglass cows have been stolen from the set of Brad Pitt's latest film 'World War Z' in Scotland.

The pair of fake fibreglass cows were taken by thieves from a field at the Grangemouth oil refinery in Falkirk, Scotland, where scenes for the zombie movie are being shot, according to reports.

The crooks managed to make off with the false animals despite a security guard being on duty at the time.

"These cows don't really look much like real animals, so we have been wondering how they might be used. They look like concrete but they're made out of fibreglass and are not as
heavy as they look," a source said.

The cows were part of a set being used to recreate a war-ravaged Philadelphia.

Pitt, 47, is also shooting a number of sequences for the film in Glasgow and he and his partner Angelina Jolie and their six children - Maddox, 10, Pax, seven, Shiloh, five, Zahara, six, and three-year-old twins Vivienne and Knox are staying in a 16th century mansion in Scotland.

(Agencies)