Detectives are re-appealing for information after a man was found seriously injured near Dumbarton East train station.

A concerned resident contacted emergency services after discovering the 46-year-old at the rear of shops in Glasgow Road in the early hours of Saturday morning.

He was found with a serious head injury and remains in the Royal Alexandria Hospital where his condition is described as critical.

Officers have established the man's identity and a further sighting of him in Burnside Street at Eastfield Crescent around 1.40am.

Extensive enquiries are under way with officers checking CCTV footage and carrying out door-to-door enquiries as they try to establish how the man sustained his injuries.

Detective Inspector Ogilvie Ross said: "We know the man left the Stags Head Bar around 1.20am.

"We also have a new sighting of him around 1.40am when he is seen walking in Burnside Street at Eastfield Crescent.

"We are still trying to establish where he was and who he met before being seen again around 1.50am walking in the area of Dumbarton East train station in Glasgow Road.

"I would appeal to anyone who was in these areas to think back and consider if they saw anything.

"In particular any motorists with dash cams please check your footage as you may have captured images which could be vital to our investigation."

Any information can be passed to officers at Clydebank Police Office via 101, quoting reference number 0823 of June 1, 2019 when calling.

Crimestoppers can also be contacted in confidence on 0800 555 111.