(WJW) - Several unusual-colored dogs have been seen roaming the site of the Chernobyl nuclear disaster that happened almost 40 years ago.

The Dogs of Chernobyl, a project affiliated with the Clean Future Fund nonprofit, took to Instagram last month, showcasing dogs with blue fur recently seen at the exclusion zone in Ukraine.

"A very unique experience we have to discuss. Chernobyl blue dogs," the group wrote on social media. "We are on the ground catching dogs for sterilization and we came across three dogs that were completely blue. We are not sure exactly what is going on."

A few days later, the Clean Futures Fund, which works with people and animals in and near the Chernobyl exclusion zone, cleared the air on some speculation after the photos and videos started circulating online.

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