NATO restricts access to its HQ by Belarusian diplomats Xinhua 01 Jun 2021, 06:05 GMT+10 BRUSSELS, May 31 (Xinhua) -- The North Atlantic Treaty Organization (NATO) has restricted access to its headquarters by members of Belarus' diplomatic mission, the alliance's secretary-general Jens Stoltenberg said Monday, citing "assessment of security measures at the headquarters." The move came after a Ryanair passenger plane en route from Athens to Vilnius was diverted to land in Minsk on May 23. The Irish airline Ryanair said that the flight FR4978 was directed to an airport in Minsk as crew on the plane had been alerted to a possible security threat by Belarusian authorities, adding that nothing untoward was found.