Ukrainian prosecutors receive no response from U.S. to requests to question Manafort

Ukrainian prosecutors have made seven separate appeals over the past two years for help in questioning President Donald Trump's former campaign manager Paul Manafort in connection with a corruption investigation, and the U.S. has not responded to those requests, CNN has reported.

According to CNN, the prosecutors in Kyiv sent requests, including letters to FBI Director James Comey and U.S. Justice Department officials.

"Ukrainian officials said the U.S. has not responded to those requests," CNN said.

U.S. authorities confirmed to CNN that the requests were received but declined further comment.

As reported, in August 2016 the National Anti-Corruption Bureau of Ukraine (NABU) confirmed that the name of Manafort was among the persons in the so-called "black ledger" of the Party of Regions. Manafort quitted the Trump campaign after the scandal.