A six-year-old who was one of four boys to fall into an icy lake near Solihull has died, police have said.
The three others, aged eight, 10 and 11, who have also died were with the younger child at Babbs Mill Park, in Kingshurst, on Sunday.
West Midlands Police said it was with "heartfelt sadness" it had to report the six-year-old in hospital had "lost his fight for life".
Hundreds of floral tributes and toys have been left at a site near the lake.
West Midlands Fire Service, which was also involved in the effort to rescue the boys, said it was "devastated" to hear the news.
It added: "We wish the family strength and comfort in these tragic circumstances."
The 10-year-old has been named locally as Jack Johnson, but the identities of the other three boys are yet to be confirmed.
Specialist diving teams were in the water until Tuesday, although police have stressed they have not had reports of anyone else missing.
They added all searches had now been completed and the cordon would be lifted.
