CONTINUING COVERAGE: FLOODS OF 2016

Olympic Diving Pool Water Mysteriously Turns Green

Photos show the pool at the Maria Lenk Aquatics Centre before (right) and after (left) the sudden, mysterious transformation. (Getty)

RIO DE JANEIRO — Like the Chicago River on St. Patrick’s Day, the diving pool at the Rio Summer Olympics has suddenly taken on a bright shade of green.

China won a third consecutive gold medal Tuesday, but speculation about the water overshadowed the divers on social media.

British diver Tom Daley, who won a bronze medal after diving into clear blue water Monday, tweeted a photo of the pool saying, “Ermmm … what happened?!”

In the last 24 hours, the water in the diving pool — but not the adjacent swimming pool — took on a new emerald shade, worrying some on Twitter.

There is speculation that the color could be caused by algae due to a lack of chlorine, but no one knows for certain yet.

Rio organizers issued a statement saying tests showed the water isn’t harmful for athletes, and that they are still investigating the cause.