Yermak, Sullivan discuss Ukraine's energy security

MOSCOW. Jan 24 (Interfax) - Ukrainian presidential office chief Andrei Yermak has had a telephone call with United States National Security Advisor Jake Sullivan.

"Had a phone call with the U.S. President's NSA, Jake Sullivan," Ukrainian media quoted Yermak as saying on his social account.

"We continued to consider ways to enhance the protection of Ukraine's critical infrastructure and ensure its energy security," he said.

Yermak thanked the U.S. president, the U.S. Congress, and all American people for supporting Ukraine.