Two men have been arrested after a 43-year-old man died during an incident at a block of flats, Suffolk Police said.
The pair are being held at Martlesham police investigation centre in connection with the man's death at flats in Chesterton Close, Ipswich in the early hours of yesterday morning.
A post mortem examination was due to take place yesterday evening.
A 21-year-old man was arrested on suspicion of murder, and a 22-year-old on suspicion of conspiracy to murder.
Suffolk Police has appealed for any witnesses to come forward.
A spokeswoman said the flats were cordoned off while the police investigation continued.