Oscar winner Christoph Waltz has assured fans he is "fine" after he was caught up in a gun scare at the Cannes Film Festival in France on Friday (17May13).

The Django Unchained star was on set for an outdoor Tv interview with French show Le Grand Journal for the local Canal + channel when a man nearby allegedly fired a weapon and claimed to have a fake grenade.

Waltz was rushed offstage by security at the sound of gunfire, and has now spoken out about the drama to appease his fans' concerns.

Speaking to Britain's Daily Mail, Waltz says, "I was on a panel at the Studio Canal platform off the beach when a man produced a gun. I think it was a pistol and he fired but luckily for me, they were blanks. Then he shouted he had a grenade and again luckily for me, there was no grenade. The police have him. They tackled him to the ground. I don't know who he was or where he came from or what his problem was."

Editors at New York Post's gossip column Page Six quote Waltz as adding, "I'm fine, there's nothing to worry about."

Police arrested the assailant, who has only been identified as a 42-year-old male.