A witness at the scene where three boys died in Solihull says he felt "helpless" seeing their bodies being pulled from the icy water.
The children aged eight, 10 and 11 died after falling into a frozen lake yesterday, while a fourth boy aged six remains in a critical condition.
The tragedy unfolded at a lake at Babbs Mill Park in the town, where officers dived into the water with no regard for their own safety, before underwater teams searched through the night.