A 24-year-old man has died in police custody at Clydebank police office.
The emergency services were called at about 03:30, and the man was pronounced dead at the scene. The death is being treated as unexplained.
Inquiries are ongoing and a report will be submitted to the procurator fiscal.
A Police Scotland spokeswoman said: "As is normal in these circumstances, the incident will be referred to PIRC (Police Investigations and Review Commissioner)."