A 15-year-old boy drowned while taking a dip in a lake during the warm weather at the weekend.
Richard Fellows, from Brockhill, Worcestershire, died in hospital on Sunday after swimming with friends near Arrow Valley Country Park in Redditch.
Emergency services were called and rescued his friends but Richard disappeared under the water for two hours. He was airlifted to hospital but couldn't be saved. Two other teenage boys were treated for minor injuries at the scene.
A West Mercia Police spokesman said: "Officers entered the water and searched for some time together with specialist fire officers, who recovered the boy.
"Immediate medical attention was administered and later at the hospital, but despite best efforts the boy was pronounced dead later that afternoon."
A report is being prepared for the Worcestershire coroner.
Headteacher of Trinity High School Marion Barton said GCSE student Richard was well respected among fellow students.
She said: "We've arranged counselling and support for all of our youngsters who are very upset by the tragedy which happened yesterday involving Richard."
Tributes have also been paid on Twitter, with one reading: "My sincerest condolences to Richard Fellow's family, he will be sorely missed #sleeptight."