Envoy Nicolas de Lacoste’s exit linked to Paris’ refusal to recognise President Alexander Lukashenko’s 2020 re-election.
Documents found on the body indicated he was a 24-year-old Syrian man, the latest in string of fatalities at the border.
Arrests reportedly linked to shootings that left an opposition supporter and security officer dead.
Group says its investigation proves Polish border forces violated rights of dozens of migrants and refugees.
Myanmar and Belarus proved particular low points as online rights declined globally in 2021 for the 11th year in a row.
Four people were found dead on Sunday on the Belarus-Poland border, a week after Warsaw imposed a state of emergency.
Russia and Belarus on Thursday agreed to tighter coordination in economic policy but stopped short of a common currency.
Two key members of the opposition Coordination Council have been sentenced to 10 and 11 years in prison by authorities.
The authoritarian leader’s comments come ahead of large joint military exercises later this month.
A state of emergency would give authorities broader powers to monitor and control people’s movements.
A record number of refugees and migrants has crossed into Lithuania, but few are expected to be granted asylum.
UN urges Warsaw to take migrants believed to be from Iraq and Afghanistan who have been stranded on border with Belarus.
Poland says allowing the migrants to enter Polish territory would encourage further irregular migration.
Ingrida Simonyte discusses the diplomatic and migration crises at the Belarus-EU border.