A murder investigation has been launched after a man died and another seriously injured following a 'fight' inside a home in an affluent Brighton neighbourhood.
Emergency services rushed to Moon's Lodge, in Regency Square at around 2.10am on Sunday after reports of the aggravated brawl.
Two men were stabbed during the fight. One man, in his thirties, was taken to hospital in a critical condition.
The second man, aged 37, was pronounced dead at the scene soon after the services arrived. His next of kin have been informed.
A 26-year-old man, of no fixed address, was arrested at a nearby location on suspicion of murder, grievous bodily harm with intent and possession of a class A drug with intent to supply.
He remained in custody on Sunday afternoon.
Police will maintain an increased presence in and around the seafront Regency Square as the investigation continues.
Sussex Police confirmed a murder investigation had been launched. A spokesperson said: 'An arrest has been made following a serious incident involving three men at a Brighton address.
Emergency services rushed to Moon's Lodge, in Regency Square at around 2.10am on Sunday after reports of the aggravated brawl
Police will maintain an increased presence in and around the seafront Regency Square as the investigation continues. Sussex Police confirmed a murder investigation had been launched
'At around 2.10am emergency services responded to reports of a fight taking place inside a property in Regency Square.
'Two men were found with stab injuries and one man, aged in his 30s, was taken to hospital in a serious condition.
'The second man, aged 37 years, was sadly pronounced deceased at the scene.
'At a nearby location, officers arrested a 26-year-old man, of no fixed address, on suspicion of murder, causing grievous bodily harm with intent, and possession of a Class A drug with intent to supply. He remains in custody.'
Brighton Chief Superintendent Adam Hays said: 'This incident has had devastating consequences, resulting in the loss of one man's life and leaving another with serious injuries.
'There is not believed to be a wider risk to the public, and a thorough investigation is under way to establish the full circumstances.
'As this continues, there will be an increased police presence in and around Regency Square.
'We are committed to robustly tackling knife crime and will take swift and decisive action against those involved in violent offending in Brighton.'
Emergency services rushed to Moon's Lodge, in Regency Square at around 2.10am on Sunday after reports of the aggravated brawl
Witnesses, or those who may have relevant footage or information, are urged to come forward and make a report. You can do this online, or by calling 101, quoting Operation Wenthill.