Belarus freed 52 political prisoners on Thursday in a deal brokered by the United States, marking a rare diplomatic opening between Washington and Minsk and raising questions about how far sanctions relief should go.

The prisoners were brought toward the U.S. embassy in Vilnius, Lithuania, after being released from Belarus. The deal came as the United States announced it was lifting some sanctions on Belarus’ national airline, Belavia, a move that could allow the carrier to repair aircraft and buy parts, including for Boeing planes.

The release followed a meeting in Minsk between Belarusian President Alexander Lukashenko and U.S. envoy John Coale. Lukashenko called the move “very important,” while the U.S. described the sanctions easing as connected to the prisoner releases so far. The development also followed a phone call last month between Lukashenko and President Donald Trump, who had suggested a face-to-face meeting could be possible.

The political significance is substantial. Lukashenko has ruled Belarus for more than three decades and has long faced Western sanctions for a crackdown on human rights and for allowing Russia to use Belarusian territory in its invasion of Ukraine in 2022. The release of prisoners suggests he is again trying to trade concessions for a thaw with the West.

Not all of the freed prisoners crossed into Lithuania. One of the best-known opposition figures, veteran activist Mikalai Statkevich, reportedly refused to leave Belarus, tried to return and was blocked by border guards. Opposition figures said he was resisting forced deportation. His case reinforced how tightly the Belarusian state still controls dissidents even as it frees some prisoners.

Other released prisoners included Ihar Losik, a journalist for U.S.-funded Radio Free Europe/Radio Liberty, according to the AP account. Belarusian opposition leader Sviatlana Tsikhanouskaya warned that easing sanctions without deeper reforms could give Minsk and Moscow new ways to work around restrictions, especially through access to aircraft parts.

That concern is central to the deal’s wider implications. Belarus’ airline has already been sanctioned over the forced diversion of a commercial flight in 2021, when authorities arrested dissident journalist Raman Pratasevich after the plane landed in Minsk. Critics say any reopening of supply lines could benefit not only Belarus but also Russia, which is also under aviation sanctions.

The United States has framed the release as progress. Opponents of sanctions relief argue that without systemic political change, the exchange may simply reward repression. For now, the event stands as both a humanitarian release and a diplomatic test of whether selective easing can alter behavior in Minsk.