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Ukrainian Prosecutor General Yuriy Lutsenko has denied NYT's information about blocking the investigation into the Manafort case.

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"Speculations around the so-called freezing of the Manafort case, which were voiced by the American leading edition [The New York Times], are completely untrue. Indeed, the Prosecutor General's Office (PGO) of Ukraine has [criminal] cases, in which Manafort appears. We have conducted a number of investigations and at least four times requested international legal assistance from our American colleagues that we received," he told Voice of America on May 23 during his visit to the United States.

He said last autumn FBI Special Prosecutor Robert Mueller demanded information from the PGO during his investigation into suspected collusion between members of the Donald Trump pre-election headquarters and Russian special services.

"Nevertheless, as the prosecutor general, I addressed to Special Prosecutor Muller through the U.S. Embassy in February of this year with the proposal of full assistance in this case, up to the creation of a joint investigation group. We have done our best for us and our American colleagues so that this case be investigated according to the current legislation, including international conventions," Lutsenko added.