Emergency services were called to Swanholme Lakes at 2.30pm on Sunday after reports that 15-year-old Declan Sawyer had entered the water and was missing.
Lincolnshire Police said in a statement on Sunday evening: “We can update that our dive team have sadly found a body in the water at Swanholme Lakes, Lincoln.
“With agreement from the family we can share that the boy who died is 15-year-old Declan Sawyer.
“Our thoughts are with his family and we send our condolences at this incredibly difficult time.
“This is such a sad incident that will no doubt also affect many of Declan’s friends and the local community as well.”
Officers had scoured the lakes for the boy with the help of their underwater search team.
“As we are starting half-term week, we ask our community to make sure that anyone affected is looked after and that people are encouraged to seek help and support where they need it,” a force spokesperson said.
Lincolnshire Police asked people not to speculate or share information that had not come from an official source.
They added: “Again, we respectfully ask that people do not speculate or share information that has not come from an official source as inaccurate information can be very upsetting to family and friends.”
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