A Belgian soldier stands guard around a security perimeter as a reported police intervention takes place around the Grand Place central square in Brussels on Sunday, November 22. Multiple raids took place throughout Brussels, according to the Belgium Federal prosecutor, and 16 people were arrested. Salah Abdeslam, a suspect in Paris terror attacks, was not among them. EMMANUEL DUNAND/AFP/Getty Images
Belgian police officers and soldiers secure an area as a reported police intervention takes place around the Grand Place central square in Brussels on November 22. EMMANUEL DUNAND/AFP/Getty Images
Belgian national Ahmad Dahmani, center, suspected to be involved in the November 13 Paris attacks, was arrested late Friday, November 20, in southern Antalya province, Turkey. Dahmani had been tracked by a police anti-terror unit after he arrived at the Antalya International Airport -- on a flight from Paris -- the day after the massacre. SABAH/DP/ABACA
Two Syrian nationals, Ahmet Tahir, left, and Muhammed Verd, were arrested by Turkish security forces in southern Antalya province, Turkey, on November 20. They were captured, allegedly with a fake Syrian passport for Belgian national Ahmad Dahmani, suspected of location scouting for the Paris attackers. SABAH/DP/ABACA/SIPA
Police searched the home of Hasna Ait Boulahcen's mother in Aulnay-sous-Bois, France, on Thursday, November 19. Ait Boulahcen, 26, was killed during Wednesday's raid on an apartment in the Paris suburb of Saint-Denis, official sources in France told CNN. She did not blow herself up as was previously thought. OLIVIER ARANDEL/Maxppp/Landov
A body is removed from an apartment that was raided by police in the Paris suburb of Saint-Denis, France, on Wednesday, November 18. French special forces were looking for those behind the November 13 terrorist attacks in Paris. The hourslong ordeal ended with at least two suspects dead and eight detained. ERIC FEFERBERG/AFP/Getty Images Authorities zeroed in on the Saint-Denis building after picking up phone conversations that a relative of Abdelhamid Abaaoud, the attacks' purported ringleader, might be there. The Paris prosecutor's office later announced that Abaaoud's bullet-riddled body was found after the raid. Pierre Suu/Getty Images
French Interior Minister Bernard Cazeneuve visits Saint-Denis during the raid on November 18. Pierre Suu//Getty Images
A Renault Clio with Belgian license plates is towed by the police in Paris on Tuesday, November 17. The car is believed to have been rented by Salah Abdeslam. Authorities are looking for Abdeslam, a Belgium-born French national who is one of three brothers suspected in the terror attacks. Thibault Camus/AP Special forces stand guard on a roof in Molenbeek, a suburb of Brussels, Belgium, on Monday, November 16. DIRK WAEM/AFP/Getty Images
Armed police guard a street in Brussels on November 16. Geert Vanden Wijngaert/AP
Salah Abdeslam's brother Mohammed speaks to the media at his house in Molenbeek on November 16. Mohamed Abdeslam was released by police after being detained over the weekend. Leila Khemissi/AP
Special forces sit on a roof in Molenbeek as they prepare to enter a house on November 16. Geert Vanden Wijngaert/AP
Armed police guard a street in Molenbeek on November 16. Geert Vanden Wijngaert/AP
A man is detained by a police officer after a raid in the Mirail district of Toulouse, France, on November 16. French Prime Minister Manuel Valls said there were 150 police raids overnight in the country. AP
Police officers overlook Paris as they patrol in front of the Sacre Coeur Basilica on November 16. MIGUEL MEDINA/AFP/Getty Images