Tributes have been paid to two 17-year-old boys who died after a stabbing at a house party in Milton Keynes.
The victims have been named locally as Dom Ansah and Ben Gillham-Rice.
One died at the scene in Emerson Valley and the other later in hospital.
Police forensic teams are still working at the scene today and the cordon surrounding the house has been widened.
Ben Gillham-Rice's former school - Lord Grey - paid a tribute, saying their thoughts went out to his family.
Both boys had also attended Hazeley Academy in Milton Keynes. The school described the news as terrible and urged anyone who knows anything to get in touch with police.
The academy opened a room for prayer at the Oak Tree Centre in Wallinger Drive between 9.30am and 3pm.
The Rev Ross Dilnot was welcoming anyone who wanted to pray.
The academy said it would be reminded students how to stay safe from rare but potential dangers, and how they could reduce the risks of such incidents happening to themselves and their friends. They urged parents to do the same at home.