Two explosions hit Zaventem airport at about 07:00 GMT, and another struck Maelbeek metro station an hour later. At least 31 people have been killed and many have been seriously injured in the attacks.
One video appearing to capture the moment the airport blast happened was posted online and sent to the BBC. The date on the video claimed the footage was from 22 March, but in reality it was CCTV material from a bomb attack at Domodedovo Airport in Russia in 2011.
This still from a video shows a bomb explosion at Domodedovo airport in Russia, in 2011, and is not a picture from Zaventem airport as some claimed on social media.
But it wasn't just the airport footage that was being posted on social networks. Video of an explosion on a metro system tagged to the #Malbeek tragedy was also appearing and being shared.
Again through careful checks, this black and white footage was found to have come from an attack in Belarus when 15 people were killed in an explosion on the Minsk Metro in 2011. The original timestamp had been removed.
The misleading videos which don't show the Brussels attacks.
Kurie gi "mūsiškiai"?
Serbų partizanų žudynių
Knyga pagrįsta Lietuvos istorikų įžvalgomis, žudikų išpažintimis, žudynių liudininkų pasakojimais ir pokalbiais su Lietuvos senoliais, tebegyvenančiais šalia žudynių vietų, kurias šią vasarą „kelionėje su priešu“, (with great commitment and integrity, they present an accurate description of very painful historic issues) pasaulyje garsiu nacių medžiotoju Efraimu Zuroffu, aplankė autorė.