Ryanair Flight 4978 is forced to land by Belarusian authorities to detain dissident journalist Roman Protasevich.

Ryanair Flight 4978 was a regularly scheduled international passenger flight from Athens International Airport, Greece, to Vilnius Airport, Lithuania, operated by Buzz, a Polish subsidiary of the Irish airline Ryanair. On 23 May 2021, while in Belarusian airspace, it was diverted by the Belarusian government to Minsk National Airport due to alleged claims of a Hamas bombing attempt, where two of its passengers, opposition activist and journalist Roman Protasevich and his girlfriend Sofia Sapega, were arrested by authorities. The aircraft was allowed to depart after seven hours, reaching Vilnius eight and a half hours behind schedule.

Belarus, officially the Republic of Belarus, is a landlocked country in Eastern Europe. It is bordered by Russia to the east and northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Belarus spans an area of 207,600 square kilometres (80,200 sq mi) with a population of 9.1 million. The country has a hemiboreal climate and is administratively divided into six regions. Minsk is the capital and largest city; it is administered separately as a city with special status.

Roman Dmitriyevich Protasevich or Raman Dzmitryevich Pratasevich is a Belarusian blogger and political activist. He was the editor-in-chief of the Telegram channel Nexta and chief editor of the Telegram channel Belarus of the Brain.

May 23 is the 143rd day of the year in the Gregorian calendar; 222 days remain until the end of the year.