Texel mule cross© Food and Drink/REX

Sheep rustlers have stolen 58 sheep from a farmer’s field in County Durham.

The 58 Mule and Texel cross sheep were removed overnight Thursday (12 March) from a field at Salters Gate Lane, near Satley.

Some have a green left ear tag – 105607 – and others have both left and right ears tagged. Left ear will have a yellow tag and grey in the right – UK 0165770.

See also: £5,000 reward to find distraught farmer’s stolen sheep

According to rural insurer NFU Mutual, the North West and North East are among the highest areas for sheep rustling in mainland Britain.

In 2013, large-scale sheep rustling in the north-west and north-east of England led to theft claims increases of 68% and 52%, respectively.

Durham Constabulary has asked anyone with information on the Satley sheep theft to call 101, quoting incident number DHM-12032015-0030.