Two teenage boys have been arrested on suspicion of murder over the fatal stabbing of a 16-year-old boy in Bristol on Wednesday evening.
The boys are both 15 years old and cannot be named due to their age.
Supt Mark Runacres, the force’s Bristol Commander, said: "The team investigating yesterday’s incident are working around the clock to bring those responsible to justice.
"This evening, two 15-year-old boys were arrested in connection with the investigation and they have been taken to police custody where they will be questioned.
A police tent at Rawnsley Park near to the scene in the St Philips area of Bristol
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He added: "Our collective thoughts are with the victim’s family and loved ones during what is undoubtedly a very difficult time.
"Specialist family liaison officers have been assigned to the family to provide them with support and keep them updated on the investigation."
Police said the victim has not been formally identified, but their family has been informed, with a post-mortem to take place ‘in due course’.
The killing comes weeks after the deaths of Mason Rist, 15, and Max Dixon, 16, who were stabbed in the Knowle West area of the city.
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Forensic investigators at the scene in Bristol
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Speaking yesterday, Runacres said: "Tragically, we have lost another young life from our city in utterly horrific circumstances. Our thoughts are with the victim’s family at what will be an unimaginably difficult time and officers will continue to support them.
"We are committed to bringing those responsible to justice and we will be working tirelessly to that end.
"While we are keeping an open mind, there is no clear evidence to suggest this is linked to other recent incidents in the city."
Bristol mayor Marvin Rees said: "I can't begin to imagine what the victims' family are experiencing, my thoughts are with them. This needs to stop. We will make every effort to support the family, the police and local community at this time."
Referencing the other incidents in Bristol, police said: “These tragedies are a stark reminder of the horrific impact knife crime has on our communities.
"One of our key priorities is to reduce knife crime and we are working year-round to tackle it."