Police say they're hunting masked gatecrashers armed with knives after the 'dreadful' attack that left two 17-year-olds dead in Milton Keynes.
Police were called to Archford Croft, Emerson Valley, Milton Keynes at 11.59pm on Saturday night, just before midnight.
Tragically, as a result of this incident, one 17-year-old boy died of his injuries at the scene and a second boy, also 17, was taken to hospital, where sadly, he also died.
Two other males, one aged 17, and one aged 23, were also injured at the private house party. Police say one man has been discharged, and the other is recovering from his injuries in hospital.
Police say it's a dreadful incident and a significant investigation led by their Major Crime Unit continues.
They say the party was a private birthday party, and although we believe that all of those involved were known to each other, we believe that those responsible arrived at the party uninvited, wore face coverings and they were armed with knives in what appears to be a targeted attack.
Det Ch Supt Hunter says there remains an increased police presence in Archford Croft in Emerson Valley and house to house and CCTV enquiries are continuing in what is a fast-moving investigation.
Police expect to remain at the address for several days to come.
Home Office post-mortems for the two boys that died will be conducted on Tuesday, and the families of both victims are being supported by specially trained family liaison officers.