A BUSY main road towards Helensburgh is closed this afternoon after a two-vehicle crash.

Emergency services are currently at the scene which has shut part of Stirling Road northbound in Dumbarton between Strowan's Road and Dunbritton Road.

It is reported that the crash happened around 2.25pm on Wednesday, September 18.

Drivers are urged to use an alternative route.

The road re-opened on Wednesday evening.