A MAN has been arrested following an alleged "unprovoked assault" on a 23-year-old in a Helensburgh pub.

The incident took place at around 1am on February 7, inside a West Clyde Street pub.

The man sustained minor facial injuries and Helensburgh police reported he did not required any medical treatment.

A 23-year-old man was arrested after the alleged assault and a report has been forwarded to the procurator fiscal at Dumbarton.