A teenage boy has died after he was pulled from the sea by emergency services following a search and rescue operation.
The 17-year-old had got into difficulty at the mouth of the River Wear, Sunderland, after heading out in a dinghy with three other teenagers.
Northumbria Police said that after being rescued by the RNLI, the boy died from his injuries at the Royal Victoria Infirmary, Newcastle.
The teenager and another 17-year-old were spotted in the water at around 3.22pm on Tuesday.
Emergency services rescued the second boy and two teenage girls from the dinghy, but the first 17-year-old remained missing.
Following a multi-agency search, the police helicopter spotted something in the water at around 5.10pm. RNLI lifeguards retrieved a male who was airlifted to the RVI with serious injuries.
Police said it is thought the boys had been in the dinghy then got out to swim, before getting into difficulty.
The other three youngsters are said to be stable.