A Belgian anti-terrorism judge on Monday charged a suspect with involvement in the Paris attacks, the federal prosecutor's office said, the fourth person to face charges in Belgium over the November 13 atrocities.
The suspect was arrested in a series of police raids in Belgium on Sunday night along with 15 other people who were all released without charge, as authorities warned of a Paris-style plot facing Brussels.
"The investigating judge specialised in terrorism cases placed into custody a man arrested during the operations of last night. He is charged with participating in activities of a terrorist group and with terrorist attack (Paris)," the prosecutor's office said in a statement.
"After thorough interrogation by the federal judicial police, the remaining 15 persons were released by the investigating judge."
Mohammed Amri, 27, and Hamza Attou, 20, were charged last Monday on suspicion of helping alleged Paris attacker Salah Abdeslam with escaping to Brussels after the November 13 carnage in which 130 people died.
A third person who has not been publicly named was also charged with involvement in the Paris attacks on Friday and is reported to have helped Salah when he was dropped off in the Belgian capital.