A 12-year-old boy who couldn't swim died after 'tombstoning' 10-foot into a river with friends.
Hamse Darman jumped from a bridge into the Jubilee River near Slough, Berkshire, and disappeared beneath the surface.
Emergency services were called to the scene after Hamse's friends rushed to nearby homes to raise the alarm.
Police and fire crews searched for the boy and found his body just after midnight.
Neighbours told how youngsters often ignored repeated warnings about the dangers of the river and continued their daredevil antics at the spot.
"They were jumping off the bridge into the water," said a woman, who didn't want to be named.
"It was Hamse and two others. Hamse was not a swimmer so it looks like he has jumped in and got into trouble.
"The other two managed to get out and raise the alarm."
Detective Sergeant Lucy Deane, from Slough CID, said: "Our thoughts go out to the family of this young boy.
"Although it might be tempting to jump in the river when the weather is warm, there are often hidden dangers under the water and so we would advise against doing so."