Two boys, aged 15 and 16, have died after being stabbed in Bristol.
They were attacked in Knowle West at about 23:20 GMT on Saturday by a group of people who fled the scene in a car, Avon and Somerset Police said.
Officers arrived within minutes of being called and gave the boys first aid at the scene, but both died in hospital on Sunday morning.
A 44-year-old man and 15-year-old boy have been arrested and are in custody. A vehicle has also been seized.
Police have launched a murder investigation.
Bristol Commander Supt Mark Runacres said officers were keen to speak to passengers who were on a bus on Ilminster Avenue, where the stabbings occurred, at the time.
“Our collective thoughts are with their families at what is undoubtedly a very difficult time. Specialist family liaison officers will now be assigned to the families to provide them with support and keep them updated on the investigation,” he said.
“A cordon is in place on Ilminster Avenue between Newquay Road and Tavistock Road, and members of the public can expect to see a large police presence as forensic searches and other enquiries are conducted.”
Formal identification of the victims has not yet taken place and a forensic post-mortem will be scheduled in due course.
Supt Runacres said several witnesses had been identified.
The neighbourhood policing team will be setting up a mobile police station near the scene and anyone with concerns or questions is encouraged to to speak to any of the officers, he added.
High visibility patrols will also be carried out to provide reassurance to the community.
Supt Runacres said it was extremely important there should be no commentary or sharing of information or images online which could in any way prejudice any future proceedings.
“I’d also like to remind people of the impact the sharing of images, footage or even discussing the incident online may have on the families of the two boys,” he said.
“They are already going through the most difficult of times and you may cause them further upset.”
William Turner is a seasoned U.K. correspondent with a deep understanding of domestic affairs. With a passion for British politics and culture, he provides insightful analysis and comprehensive coverage of events within the United Kingdom.