Police have arrested a third man in connection with a double murder at a house party in Milton Keynes.
Dom Ansah and Ben Gillham-Rice, both 17, died following the incident in Emerson Valley, on 19 October. Ansah died from a stab wound to the back while Gillham-Rice was cut in the chest.
The 27-year-old suspect has been arrested on suspicion of conspiracy to murder and remains in custody, Thames Valley police said.
It comes after a man accused of stabbing the two teenagers to death appeared at High Wycombe magistrates court on Saturday morning charged with two counts of murder.
Earl Bevans, 22, spoke during the brief hearing to confirm his name, date of birth, that he has no fixed address and that he was represented by Wasif Ahmed.
He also faces two counts of attempted murder after Ryan Brown, 23, and a 17-year-old boy, who cannot be named for legal reasons, were left with serious but non-life-threatening injuries.
The bench of magistrates, chaired by Pat Milliner, remanded him in custody ahead of a bail hearing at Luton crown court on Monday.
Bevans will appear alongside Charlie Chandler, 21, who was remanded in custody by magistrates on Friday.
Chandler, of Bletchley, is charged with two counts of murder and two of attempted murder.