Two suicide bombers who blew themselves up at Brussels airport are believed to be brothers who were being sought for links with key Paris attacks suspect Salah Abdeslam, RTBF television reported Wednesday, citing police sources.

RTBF named the two as Khalid and Ibrahim El Bakraoui, saying Khalid last week rented an apartment in Brussels under a false name where police found Abdeslam's fingerprints after a raid.

READ: FBI, New York sending team to probe Brussels attacks

Police arrested Abdeslam, Europe's most wanted man, in a dramatic operation in Brussels on Friday.