A 15-year-old girl has died in hospital after being swept into the sea in Cullercoats Bay.
The incident occurred at nighttime on Saturday, January 16.
Officers were called to the incident at 7.44pm, following concerns about a group of teenagers seen on the north pier at Cullercoats Bay, where the sea was running high.
Three friends managed to walk back to safety but the fourth teenager was swept into the sea by a large wave and was rescued by a member of the public.
The coastguard and RNLI were called to assist and a member of the public rescued the girl from the water on the south side of the bay.
All four teenagers were taken to Cramlington Hospital.
The three teenagers who walked away are described as well after the incident.
Police are now reminding people about the dangers of the sea.
Chief Inspector Paul Knox said: “We need to remind people of the danger of the sea, particularly in the dark and cold at this time of year, when tides are high and people can be taken unawares by the strength of the waves and the inherent dangers of the sea.”
Mr Knox added: “People should always be careful around water and if the sea is looking rough with waves pounding onto the pier, we would advise people to be particularly cautious and keep their distance.”
Police are making enquires into the incident.
Anyone with information should contact police on 101, quoting log number 974 of 16/01/16.