A murder inquiry has been launched after a teenage boy was stabbed to death.
Police were called to a property on Stothard Road in the Lockleaze area of Bristol at about 5.50am following reports of a disturbance.
A 16-year-old boy was taken to Southmead Hospital with knife wounds but died of his injuries.
Police arrested a 19-year-old man in connection with the incident and he remains in custody.
Formal identification has not yet taken place, a spokesman for Avon and Somerset Police said.
Senior investigating officer Richard Pegler said: "This investigation is at a very early stage and we are doing everything possible to determine how the young man died.
"We have specially trained family liaison officers who are supporting the young man's family during this difficult time.
"A post-mortem examination will be carried out by a Home Office pathologist in due course.
"We have arrested a 19-year-old man in connection with this incident and he is currently in police custody.
"Local residents are advised the road will be closed for the foreseeable future as we carry out our inquiries.
"While there continues to be increased police activity in the area, we'd like to reassure residents that there's no risk to the wider community."