FINA attempts to explain mystery of green pool water

It's not easy being green.

Except at the diving pool at the Rio Olympics. Curiously, the water turned green at the pool on Tuesday -- causing a social media firestorm and raising questions from the divers.

There was no official explanation why it occurred until Wednesday afternoon when FINA, the international governing body of aquatics, issued a statement:

“FINA can confirm that the reason for the unusual water color observed during the Rio diving competitions is that the water tanks ran out of some of the chemicals used in the water treatment process.

The water polo, left, and diving pools on Wednesday morning (Matt Dunham / Associated Press)

The water polo, left, and diving pools on Wednesday morning (Matt Dunham / Associated Press)