A 26-YEAR-OLD woman has been arrested for alleged drink driving after police attended a report of a road accident north of Helensburgh.

Officers responded to a report of a one-vehicle crash on the A818 between Helensburgh and Arden at around midnight on January 21.

The woman was arrested after police took a preliminary breath sample.

In a separate incident, a 23-year-old man was charged with the same alleged offence after Helensburgh police stopped him on the A814 on January 18 due to concerns over the manner of his driving.

Reports have been sent to the procurator fiscal.