Two young people have drowned in a lake at a nature reserve in East Yorkshire, emergency services say.
Four others were rescued from the scene at High Eske, near Tickton, on Wednesday afternoon.
Police divers and fire and ambulance crews all went to the area, which they closed off to the public.
Authorities have begun an investigation into how the tragedy happened.
Humberside Fire and Rescue Service said: “Last night emergency services attended an incident at High Eske Nature Reserve, Tickton. Despite the very best efforts of the emergency services on the scene, tragically the incident resulted in two young people losing their lives.
“Our thoughts and deepest sympathies are with the families and friends at this difficult time.
“A further four members of the public were rescued from the reserve by Humberside Fire and Rescue Service using a boat and Humberside Police deployed diving teams.
“The service is working closely with Humberside Police, and the area is currently closed to the public as we continue to investigate this very tragic incident.”
High Eske nature reserve, near Beverley, is popular with walkers and families, and has been described as a great spot to spy wildlife, particularly water birds.
The fire service stressed the importance of remaining safe around open water.
“Open water such as ponds, rivers and lakes etc are highly dangerous and people should not enter them,” it said.
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