Published on the CNN March 24, 2016
So far, that's how many people that authorities say played a part in Tuesday's terror attacks in Brussels, Belgium, that killed 31 people and injured 270.
Two were allegedly involved in bombing a train near the Maelbeek metro station. Of them, one has been identified as Khalid El Bakraoui, who died in that suicide attack. And on Thursday, a senior Belgian security source told CNN that authorities believe a second, unnamed person was also involved in that blast. That man's whereabouts -- and whether he's dead or alive -- is unknown.
Surveillance footage shows this man holding a large bag at the station, according to Belgian public broadcaster RTBF. It's not clear if he was among the at least 20 killed in that blast, RTBF said... Read more