(CNN) - Vice President Joe Biden will travel to Poland and Lithuania next week to meet with leaders about Ukraine and to show U.S. support for NATO allies.
"During his meetings, the vice president will consult on steps to support Ukraine’s sovereignty and territorial integrity, and affirm our collective defense commitments under the North Atlantic Treaty and our enduring support for all of our allies and partners in Europe," the White House said in a statement on Friday.
According to the White House, Biden will be in the region from Monday through Wednesday.
The trip will follow Sunday’s referendum on whether Crimea, in southern Ukraine, should rejoin Russia.
The United States and its allies in Europe contend the referendum is unconstitutional and illegal because Russian troops have essentially taken over the strategic peninsula.
Separately, the State Department on Friday issued a travel advisory for Russia.
It cautioned Americans traveling there given "the possibility of violence or anti-U.S. actions directed against U.S. citizens or U.S. interests."
CNN's Jim Acosta and Dana Davidsen contributed to this report.