Republican Senator John McCain arrived at the Presidential Administration to meet with Petro Poroshenko. It was reported by the correspondent of "112 Ukraine" TV channel.
Defense of the country is expected to be the topic of the conversation, as John McCain is a senator who heads the committee of the US Armed Forces. Presidential Administration does not provide any details at the moment.
The convoy arrived 10 minutes before the start of the announced meeting, there was no enhanced security.
Earlier, the US imposed sanctions against Russia because of cyber attacks.
35 diplomats are also being expelled from the country.