The hunt is on for a vulture that has escaped from a zoo, police said.

The African White-backed Vulture, called Bones, vanished from an enclosure in Blackbrook Zoological Park, in Winkhill, near Leek, Staffordshire.

The bird stands 2.5ft high and has a wing span of around 11ft. It has a creamy, white-coloured back while the rest of the feathers are brown, a spokesman for Staffordshire Police said.

The five-year-old ringed bird was last seen on Friday but had gone by Saturday when staff arrived for work.

The bird is not said to be dangerous. Anyone who sees it should call 07940 433 102.