An Austrian museum is offering free entrance to anyone who turns up naked.

With temperatures in Vienna reaching 36C, the Leopold Museum says its latest campaign has come at just the right time.

Spokeswoman Verena Dahlitz said: "We're offering free entrance to anyone who turns up in their birthday suit as a promotion for our latest exhibition The Naked Truth.

"We understand that some people may be shy, and so we'll probably let them in free in swimming costumes, but we're hoping once inside they'll realise how liberating it is to look at the art in the nude."

The exhibition features works by three of Austria's greatest artists Gustav Klimt, Egon Schiele and Oskar Kokoschka.