Top European Union officials warned Belarus on Sunday that it would be held responsible for the fate of a flight diverted to Minsk and demanded all passengers be released.
EU foreign policy chief Josep Borrell tweeted that they hold the government of Belarus responsible for the security of all passengers and the aircraft.
The president of the European Council Charles Michel, who will host a summit of the 27 EU national leaders on Monday, also spoke out.
He says an ICAO investigation of the incident will be essential referring to the International Civil Aviation Organisation, a UN agency.