【Watch Young Woman Bai Jie】

Many people highlighted the problems with the water outdoors in Rio leading up to the 2016 Summer Olympics.

On Tuesday,Watch Young Woman Bai Jie the attention quickly turned to the water in the diving pool, which seemed to change from a cool blue to a slime green overnight.

SEE ALSO: Rio Olympics: What's up with all those empty seats?

Among the people to notice was diver Tom Daley from Great Britain, who tweeted a photo of the stadium Tuesday afternoon.

---

You May Also Like

---

---

This Tweet is currently unavailable. It might be loading or has been removed.

BBC Sports journalist Nick Hope tweeted a statement saying that venue officials had tested the water and there was "no risk" to athletes' health.

Mashable Trend Report Decode what’s viral, what’s next, and what it all means. Sign up for Mashable’s weekly Trend Report newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

This Tweet is currently unavailable. It might be loading or has been removed.

However, the release also stated that officials were "investigating the cause of the situation."

This Tweet is currently unavailable. It might be loading or has been removed.

Photos from Monday clearly show that the diving pool was a very different color.

Original image has been replaced. Credit: Mashable

And if you take a look at the water polo pool located directly next to the diving pool at the Maria Lenk Aquatics Center, clearly, something is wrong.

RIO DE JANEIRO, BRAZIL - AUGUST 09: General view of the diving pool at Maria Lenk Aquatics Centre on Day 4 of the Rio 2016 Olympic Games at Maria Lenk Aquatics Centre on August 9, 2016 in Rio de Janeiro, Brazil. Credit: Getty Images RIO DE JANEIRO, BRAZIL - AUGUST 09: General view of the diving pool at Maria Lenk Aquatics Centre on Day 4 of the Rio 2016 Olympic Games on August 9, 2016 in Rio de Janeiro, Brazil. Credit: Getty Images

After people started to notice the color conundrum, the hashtag #greenpool started to pick up on Twitter.

This Tweet is currently unavailable. It might be loading or has been removed.

This Tweet is currently unavailable. It might be loading or has been removed.

This Tweet is currently unavailable. It might be loading or has been removed.

This Tweet is currently unavailable. It might be loading or has been removed.

(Editor: {typename type="name"/})