“We do not attribute it (cyber attack. -

RT

) to someone,” RIA Novosti quotes Sullivan. 

He noted that the United States will announce its conclusions when experts sort out the situation.

On January 14, it became known that unknown people hacked into the official website of the Ministry of Foreign Affairs of Ukraine and posted a message with threats in Ukrainian, Polish and Russian.

The website of the Ministry of Agrarian Policy and Food of Ukraine and the resource of the Ukrainian Ministry of Education were also attacked.