A man has died and a second has been left seriously injured after an incident in a house in West Dunbartonshire.
Police were called to Perth Crescent, Clydebank, on Monday after reports two men were seriously injured.
Emergency services attended and both men were taken to the Queen Elizabeth University Hospital.
A 25-year-old man died a short time later, and police said it was being treated as “suspicious”.
Hospital staff described a 34-year-old man as being in critical condition.
Detective chief inspector Alan McAlpine said: “Officers are in the area speaking to neighbours and checking CCTV to try and establish the circumstances surrounding this incident and who was involved.
“Our inquiries are at a very early stage and we are appealing to anyone who may have witnessed an incident take place, or anyone with information to come forward to officers as soon as possible.”