Detectives have launched a murder investigation after a fisherman died two days after he was attacked in Co Down.
Stefan Zait (45) who was originally from Romania, was assaulted in Ardglass just before 11am on Tuesday.
A 20-year-old man arrested on Wednesday night remained in police custody on Thursday.
A 23-year-old man was arrested in the wake of the incident but was subsequently released on bail pending further police inquiries.
Police Service of Northern Ireland Detective Chief Inspector Eamonn Corrigan said: “Sadly, Stefan Zait died this morning from the serious head injuries he received during a brutal and senseless attack in broad daylight on Tuesday morning.
“I am now seeking information about his murder. I would like to hear from anyone who witnessed this violent incident during which Stefan sustained fatal injuries.
“He was attacked between 10.30am and 11am near the Downpatrick Road and Strangford Road in the village.
“These are main roads in Ardglass and I would particularly like to hear from anyone travelling on buses in the area at the time who may have witnessed the assault or any motorists who may have captured the incident on their dashcams.
“Stefan was originally from Romania and had been living in Northern Ireland for six years.
“He was making a living by working on the fishing vessels in the harbour. His family are devastated and they deserve to know what happened to him.”