Ibrahim El Bakraoui, one of the Brussels suicide bombers, was on a US counterterrorism watchlist before the November attacks in Paris and his brother Khalid was put on the list shortly afterward, sources familiar with the matter said.
CCTV surveillance image shows what Belgian officials believe may be suspects in the Brussels airport attack. (Reuters)
Police issued a wanted notice for a man suspected of involvement in Tuesday’s bomb attacks at Brussels airport. (AP)
Belgian flags seen at a street memorial service near the old stock exchange in Brussels following Tuesday's bomb attacks in Brussels, Belgium, March 23, 2016. (Reuters)