The EU has decided to ban Belarusian airlines from European skies after a flight was diverted to Minsk on Sunday and a dissident journalist arrested.
Roman Protasevich, 26, was on a flight from Greece to Lithuania which was rerouted over a supposed bomb threat.
Western countries accused Belarus of hijacking the Ryanair plane.
Belarus authorities on Monday released video of Mr Protasevich that appears to have been recorded under duress since his detention at Minsk airport.
In the clip, the journalist said he was in good health and seemingly confessed to crimes he had been charged with by the Belarusian state.
But activists, including the country’s main opposition leader, criticised the video and suggested Mr Protasevich was under pressure to admit wrongdoing.
US President Joe Biden described the actions of the Belarusian authorities as “outrageous”, saying they were “shameful assaults on both political dissent and the freedom of the press”.
Mr Protasevich’s father has told the BBC he fears his son may be tortured.
Dmitri Protasevich said on Monday he was “really afraid” of how his son would be treated by the authorities in his home country.
“We hope that he will cope. We are afraid to even think about it, but it’s possible he could be beaten and tortured. We are really afraid of that,” he said in a video call.
“We are really shocked and really upset,” he said. “This sort of thing shouldn’t be happening in the 21st Century at the heart of Europe.