Private aircraft movements at Libreville's Léon-Mba airport have become increasingly frequent these last few weeks despite the start of lockdowns in the European Union in mid-March, then shortly afterwards, at the end of the same month, in West and Central Africa. First, a Boeing 737, registered  P4-BBJ, flew on 17 March from Gabon to Britain's Stansted Airport, to where part of the air traffic heading for the British capital has been redirected. The aircraft, which is often used by first lady Sylvia