KYIV, Ukraine (AP) — As fear of repression rises among Belarusians following the arrest of a dissident journalist whose plane was forcibly diverted to Minsk, those who want to leave the country are feeling increasingly cornered.

Its land borders already were under tight restrictions, and now the European Union has banned flights from Belarus after a jetliner was diverted to Minsk earlier this week and authorities arrested a dissident journalist who was aboard.

That leaves opposition-minded Belarusians with few options to get out from under the authoritarian rule of President Alexander Lukashen...