A Ukrainian hacker group, CyberBerkut, has published the results of its investigation, which says that a network of biological labs is running covert experiments in Ukraine under the US control.

Axar.az reports citing TASS that, "CyberBerkut continues to follow the covert activities of US special services and non-governmental organizations in Ukraine," the group said in a statement, posted on its website on Thursday. "Recently, outbreaks of diseases rare for our country have been actively discussed on the web. Many Ukrainians believe that they were caused by secret experiments with pathogenic microorganisms, held in US biological labs in various cities of our country. A total of 15 such facilities, financed by the US, have been built in our country since 2009 with an alleged purpose of reducing biological threats."

However, according to the statement, the number and scope of biological threats have multiplied after the construction of those facilities.

"Outbreaks of rare diseases that shocked Ukraine in recent years were probably caused by routine leaks from these labs. However, this scenario appears to be highly unlikely, considering how skilled US specialists are. Most likely, those outbreaks were intentional and were a part of tests on modifications of biological warfare agents with a purpose of testing and improving them," the group says.