POLICE are investigating a possible trespassing incident after a sign was erected next to the Settle-Carlisle railways line above Horton-in-Ribblesdale.

British Transport Police says it is investigating what it refers to as a 'bizarre incident'.

The force's Lancashire division were informed that a trespasser was seen on the railway just north of Horton-in-Ribblesdale in the Yorkshire Dales National Park on Tuesday April 5.

When officers attended they found a home-made sign warning 'slow - sheep on line' had been placed beside the tracks of the mainline, which is used regularly by Northern services, freight trains and steam charters.

The hand-painted sign was made from a wooden pallet fixed to a metal barrier with cable-ties.