A 16-year-old boy has been arrested on suspicion of murder after two teenagers were stabbed to death at a house party in Milton Keynes.
The boy was detained on Wednesday evening by police investigating the deaths of Dom Ansah and Ben Gillham-Rice, both 17.
Mr Ansah died from a stab wound to the back, while Mr Gillham-Rice was knifed in the chest at the party in the Emerson Valley estate.
The arrest comes after two men were charged over the house party deaths.
Two men, Charlie Chandler, 21, and Earl Bevans, 22, have already been charged with two counts of murder over the attack.
They also face two counts of attempted murder, after a 17-year-old boy and 23-year-old man suffered serious but non-life-threatening injuries during the same incident.
Chandler and Bevans appeared in court on Monday.
Their trial is fixed for April 21 next year. Both were remanded in custody.
Thames Valley Police said a 27-year-old man was also detained on suspicion of conspiracy to murder on Saturday but he has been released under investigation.
