A man is in hospital with a stab wound after an incident at a flat in Eastbourne on Tuesday (March 23).
Police said emergency services found the 29-year-old occupant of an address in Langney Road with a wound to his back and head injuries, at around 5.30pm.
He was taken to hospital and his condition is assessed as stable and not life threatening.
No arrests had been made on Wednesday (March 24) afternoon, but detectives continue to investigate the incident.
Officers believe that the people involved are known to each other.
Detective Sergeant Ross Bartlett said:
"Anyone with information can contact us online or by calling 101, quoting Operation Mazda."