US
Security experts say incident could have been similar to 'lone-wolf' assaults
No casualties were reported and the situation was under control
Russia's investigation committee said it is "not investigating the Brussels attacks."
The house searches were carried out in the Brussels district of Molenbeek
The Belgian capital has been on high alert since local Islamic State militants carried out the attacks in Paris
Maelbeek will resume service Monday from 6 am until 10 pm, like the rest of the network
His arrest along with four other suspects marks an important step in investigations into the November 13 carnage
Police have been desperately searching for the third suspect ever since he was seen on CCTV
The key travel hub has been closed since two men blew themselves up in the departure hall on March 22
Hundreds of employees returned to the airport Tuesday for a large-scale test run.