Rio Olympics 2016: Diving pool turns green overnight forcing urgent health tests to check it is safe to use

When Tom Daley and Daniel Goodfellow claimed bronze in the men's competition the day before, the water had been the same sort of blue as in the swimming arena.

But by the time fellow Brits Tonia Couch and Lois Toulson were lining up for their event today, it had turned a turquoise green.

Daley himself was puzzled as he took his seat in the stands to watch his team-mates in action.

He tweeted: "Erm, what happened??"

Reuters

Reuters

Associated Press

Associated Press