"The State Department continues to advise US citizens to reconsider the issue of travel to Ukraine," the American diplomatic mission said in a statement.
The reason is called "increased threats from Russia."
The embassy mentions Russian military activity near the borders of Ukraine.
Earlier, the press secretary of the President of Russia Dmitry Peskov said that the Russian army will continue to conduct military exercises on its territory.
He noted that there is no connection between the maneuvers of the troops and the negotiations with the West.