KIEV, Nov. 6 – The Kroll investigation agency, hired by GfK research company after its subsidiary GfK Ukraine was accused of participating in the manipulation of television ratings, has established that GfK Ukraine employees were not involved in any such possible manipulation, the research company said.

"On the basis of the existing evidence, we've come to the conclusion that there are neither conditions nor proof that could confirm the existence of internal corruption at GfK Ukraine," said Kroll Managing Director Robert Viteretti.