In a written statement from the US Embassy in Minsk, it was reminded that Lithuania decided to close some border crossings with Belarus.
The statement pointed out that other neighboring countries of Belarus may take similar decisions.
"The governments of Poland, Lithuania, and Latvia have indicated that further border closures with Belarus are possible. US citizens in Belarus should leave the country immediately," the statement said.
The statement also warned US citizens not to travel to Belarus, noting that the US Embassy in Minsk can provide limited assistance to US citizens in the country.