After the Paris attacks, what next?

The death of Abaaoud and Aitboulahcen ended one chapter of intense criminal investigation following the coordinated attacks at a national stadium, a theater venue, and several outdoor boulevards that killed a total of 129 people.

Investigators on Sunday extended into a fifth day the detention of a man arrested on Wednesday outside the building where the suspected ringleader of the Paris attacks died, the prosecutor’s office said.

The level for the whole country was raised a week ago following the Paris attacks to level three out of four, implying a “possible or probable” threat.

The count does not include any of the attackers who died. The French national has been identified as a key suspect and is said to be highly risky.

A view shows the bar Les Beguines, in Brussels that documents show was run by the French Abdeslam brothers, one of whom blew himself up in Paris attack and the other who is on the run as Europe’s most wanted man.

Headlines flashed around the world this week that Aitboulahcen had become Europe’s first woman suicide bomber, after officials said they believed she had blown herself up at the scene of the raid in a northern Paris suburb.

Initial news reports said Aitboulahcen detonated a suicide belt or vest she was wearing.

European Union citizens – unless they display suspicious behavior – now face cursory checks when arriving on flights from outside the 26 nations in Europe that share an open-borders treaty.

French Interior Minister Bernard Cazeneuve is exhorting his European Union partners to toughen the bloc’s borders and move forward on a long-delayed system for collecting airline passenger information.

A French security official said Friday a surveillance camera at the Croix de Chavaux metro station caught Abaaoud’s image around the time of the shootings and bombings. French police official Jean-Marc Falcone, speaking on France-Info radio, said he was unable to say if fugitive Salah Abdeslam, a friend of Abaaoud, could be back on French territory.

France has stepped up strikes on Islamic State targets after President Francois Hollande pledged a merciless response to the attacks. “I didn’t know they were terrorists”.

Islamic State claimed responsibility for the Paris attacks.

The alleged mastermind of the Paris attacks, Abdelhamid Abaaoud was tracked down in Greece and Turkey just a week after a series of counter-terrorism raids in France in January 2015 through intercepted phone calls to some accomplices in Molenbeek, the Brussels neighborhood were a few of the apparent attackers are from.

Three members of Amimour’s family were arrested on Monday, French prosecutors said.

Authorities are investigating whether Mr. Abaaoud was aboard a black Seat vehicle that carried gunmen who killed 39 people in bars and restaurants in central and eastern Paris, authorities said. “The work of federal prosecutors is still going on”, he said, adding the government was assessing what extra security measures to take.

The Belgian capital was home to the suspected organizer of the November 13 Paris attacks, Abdelhamid Abaaoud, and Belgium has filed charges of “participation in terrorist attacks and participation in the activities of a terrorist organization” against three suspects relating to the Paris attacks.