Police are investigating after reports of an alleged assault last night involving a 15-year-old girl.

Police said they were were called around 7.15pm yesterday (Thursday, March 2) to reports of an assault in Bold Street, Blackburn.

It was alleged a man had followed a 15-year-old girl and put his arm around her between 5.45pm and 6pm.

The girl made off from the scene and the incident was reported to police.

Police said enquiries were on-going.