A boy who was stabbed to death by two masked attackers in Bristol has been named by police as 16-year-old Darrien Williams. A murder investigation was launched after the teenager was attacked in Rawnsley Park in the St Philip’s area of the city by two people who fled the scene on bicycles, it had previously been reported. The senior investigating officer DI Neil Meade 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.” Officers met headteachers on Friday to discuss police support before the return of pupils from half-term and the force said officers will be making extra patrols outside schools next week. In a statement on its website, Avon and Somerset police said: “While formal identification has yet to take place, we believe the victim to be Darrien Williams. “His family are being supported by specially trained family liaison officers. Our thoughts remain with them at this difficult time.” Because the postmortem only took place on Friday, it will take some time before formal identification can take place, a police spokesperson added. Two boys, both aged 15, were arrested on suspicion of murder on Thursday and remain in police custody while inquiries continue, police added. Officers were called to West Street, where the victim had run to after the assault, at 6pm on Wednesday. Supt Mark Runacres, the force’s Bristol commander, said on Thursday evening that more police patrols in the area were necessary in response to the attack. Police in Bristol were also given enhanced stop-and-search powers from 5pm on Thursday. “This is not a decision we have taken lightly,” Runacres said. “We understand the fear that exists in some communities around stop and search.” The killing comes weeks after Mason Rist, 15, and Max Dixon, 16, died after being stabbed in the Knowle West area of the city. Runacres said there was “nothing to indicate” Wednesday’s stabbing was linked to the one in Knowle West, but police were looking at whether it was linked to other incidents. He told reporters at the scene on Thursday: “We fully appreciate the magnitude of this incident, and other similar incidents we have seen in recent weeks. We are keeping an open mind as to whether last night’s tragedy is linked to other recent assaults. “We know these incidents are causing concern in our communities, which is why we have launched an operation to tackle serious violence among young people. “[There is] nothing to indicate any connection at all to the incident in Knowle West, I want to stress that, but we need to keep an open mind around any other links.”