U.S. Ambassador to Ukraine Geoffrey Pyatt has commented on Aivaras Abromavicius's announcement of his resignation from the post of the minister of economic development and trade of Ukraine.

"One of the Ukrainian government's great champions of reform...and a believer in the future Ukraine's people deserve," Pyatt wrote on his Twitter account on Wednesday.

Earlier at a briefing in Kyiv, Abromavicius announced his decision to resign because of a lack of support for and active obstruction of reforms being pursued by his team. Abromavicius accused MP Ihor Kononenko of the Petro Poroshenko Bloc of pressing on the ministry to appoint his candidates into agencies and state companies, said that the ministry was obstructed in nominating its candidates for government. "My team and I do not want to be a cover for blatant corruption, puppets for those who want to control public money the way this was done by the previous authorities. These people have names, and I will name one of them. This is Ihor Kononenko. Being a representative of a political force that nominated me for this post, he has done much over the past month to block my work and the work of the ministry," he said at a press conference in Kyiv on Wednesday.