Avon and Somerset Police say they believe the teenager who died on Wednesday was Darrien Williams.

He was attacked in Rawnsley Park in the Easton area of the city by two people wearing masks who left the scene on bicycles.

Darrien ran to Stapleton Road where a driver helped him but he died from his injuries at the scene.

Two boys, both aged 15, were arrested on suspicion of murder on Thursday. They remain in police custody.

Detective Inspector Neil Meade, the senior investigating officer in the case, said: "We are working non-stop to fully establish the circumstances around Darrien's death and we will not rest until those responsible are brought to justice.

"The loss of another young life is devastating and my thoughts are with Darrien's family.

"I would like to thank everyone who has come forward with information so far and encourage anyone who has information but has yet to speak to us to do so as soon as possible."

Enhanced stop and search powers were introduced in parts of Bristol as part of the police response to the attack this week.

A new police operation targeting youth violence has also been launched across the area.