A WARNING has been issued after people trespassed onto the railway line in Colwyn Bay.

British Transport Police said the incident, which took place on Monday afternoon, could be related to a search for a missing dog.

"Reports tonight of people trespassing in the Colwyn Bay area this afternoon," BTP North Wales tweeted. "This is possibly linked to the search for a missing dog.

"Please do NOT trespass on the railway. It is dangerous! If the dog is seen in proximity of the railway contact Network Rail or text 61016."