Forgot to say why: because of the recent unrests in the country. Rebels have taken over a town. The roads from the airport to the city are blocked. Burning cars etc.
Video from the Flemish television here: http://vrtnieuws.streampower.be/nieuwsnet_master/default/nieuws/overzicht/040604_Congoreisadvies/index.html?video_2The video short:
Bukavu has been taken over by rebels. Crisis meeting with Snba. PAssengers stranded. People arriving in Kinshasa unable to reach town 12 hours later, the airport is blocked.