Sinkhole
Media playback is unsupported on your device
Video

Cowshill spreading sinkhole sparks concern

People are being warned to stay away from the site of a sinkhole in Upper Weardale.

The 200ft hole opened up above a former lead mine near Cowshill, and John Hensby, who owns the land, says it is becoming bigger.

READ MORE: Sheep 'pulling down' sinkhole cordon