The North's Police Ombudsman has been asked to investigate the death of a man who jumped into Carlingford Lough after his car was stopped by police.
Nuala O'Loan's investigators are to examine the circumstances of the death, as is normal procedure when police officers are involved.
According to reports, the PSNI was informed by a taxi driver in the Warrenpoint area of Co Down that a man had been seen speeding at about 5am yesterday.
The car was stopped near the outdoor swimming pool in the town following a police chase, but the man ran off in the direction of the lough.
The coastguard was alerted, Kilkeel lifeboat and inshore craft were launched and a helicopter crew based in Dublin was scrambled.
The deceased was in his 40s.
A coastguard spokesman said: "The man was treading water but he suddenly disappeared from sight. A search commenced of the immediate water and the Kilkeel coastguard sighted something in the water. They got the lifeboat to investigate it; it was the missing person. He was taken ashore at Warrenpoint and pronounced dead by the police doctor."