Experts on ancient rock art are to be consulted over the protection of 4,000-year-old stone carvings following vandalism on Ilkley Moor.

Landowner Bradford Council and English Heritage held talks this week about measures to protect ancient rock art, after graffiti was found gouged into a stone.

The graffiti into the Hangingstone Rock, close to the Cow and Calf Rocks viewpoint, is thought to have been carved using a chisel.

Protective measures discussed have included carrying out repairs - with the advice of the rock art world - or even covering up the stone with earth.