A POLICE helicopter chased after a man who robbed a woman using a screwdriver near Dumbarton Central train station on Monday morning.

The woman alerted police at 10.54am after a mid 30s man with black hair and a beard who wore glasses approached her, presented a screwdriver and stole an item from her.

Police say he ran off on the footpath behind Leven industrial estate.

The woman was not harmed and received no medical attention.

Enquires are ongoing and anyone with information is asked to contact police on the non-emergency 101 number.