DETONATORS have been stolen from a train track in Huddersfield.

The detonators - which have small explosives charges inside - were attached to the trans-Pennine line off Church Street, Paddock.

They were put there while men were working on the line.

If a train passes, the explosives go off and the bang alerts workers.

The detonators were reported stolen at 7.45pm on Sunday.

They are small, bright yellow and about 3in in diameter.

Sgt Tim O'Sullivan, of Huddersfield police, said: "They are potentially dangerous. Anyone who finds them should alert police."