Siarhei Tsikhanouski and 13 other prisoners have been released from jail and are now free in Lithuania, the neighbouring country's government said.

Sergei Tikhanovsky, the husband of Belarus' opposition leader, has called on US President Donald Trump to "just say the word" and ask for all political prisoners in Belarus to be released.

U.S. special envoy Keith Kellogg met Belarusian President Alexander Lukashenko in Minsk, the highest-profile visit of a U.S. official to the authoritarian state in years.