The 38-year-old man was attacked in a close of flats in West Dunbartonshire after being shouted down to the street by three people.

Police were called to Clydebank's Alexander Street shortly after midnight on Monday.

The victim was taken by ambulance to the Queen Elizabeth University Hospital in Glasgow, where medical staff describe his condition as serious but stable.

Police Scotland said he was stabbed by a stocky man in his late-50s, who was described as being around 5ft 10in tall.

The attacker was accompanied by another man and a woman at the time.

The second man, who was wearing a blue paper COVID mask, dark jacket and trousers, was also described as stocky and around 5ft 8in.

The woman was described as having dark hair and was wearing blue jeans and a green jacket.

The trio were last seen running off through the rear of the flats onto Hume Street towards Arran Place.

Detective Constable Martin Davies, of Clydebank CID, said: "At the moment we have no motive for this attack.

"Although this attack took place in the early hours of the morning, I am sure there would have been people about and so I'd ask that if you were in the area and saw anything that may assist officers with their enquiries, then please get in touch.

"From CCTV, a couple of black cars are seen passing the area around that time, so if you were there and may have dashcam footage, or any information, then please call police."