A 34-year-old man has been arrested at Harpenden train station on suspicion of possessing an offensive weapon.

British Transport Police were called at 2.22pm to the station following reports a man was causing a disturbance.

It is believed he was having a verbal altercation with another passenger.

Officers arrested the man on suspicion of possession of the weapon, criminal damage and a public order offence.

It is not know what sort of weapon it was.

Witnesses reported police officers armed with tasers arresting someone at around that time.