Abdelhamid Abaaoud

A secretive Isis unit that trained the perpetrators of the Paris and Brussels terrorist attacks has been teaching British fighters to attack targets in the UK, according to a fighter captured by Kurdish forces in Syria.

European police have been placed on high alert, following reports that 15-year old Younes Abaaoud, brother of Paris mastermind terrorist Abdelhamid Abaaoud, has left Syria and is on his way to Belgium to avenge his older brother’s death. Younes has been described as the youngest jihadist fighter of ISIS in the media.

An Islamic State of Iraq and the Levant (ISIL) leader with "direct" links to the alleged ringleader of the Paris attacks was killed in an air strike in Syria as he was plotting additional attacks, the Pentagon said Dec. 29.

France will commemorate the victims of the attacks in Paris on November 13 by holding a national memorial service on Friday.

The service in the French capital will bring together 1000 people at the Les Invalides complex, with French President Francois Hollande to address families of the victims.

Hasna Ait Boulahcen , the woman thought to have been a suicide bomber during the Saint Denis siege, did not blow herself up, according to a French police source.

Hasna Ait Boulahcen was the cousin of the mastermind of the Paris terror attacks Abdelhamid Abaaoud , who was killed during operation carried out by French special forces at Saint Denis.

EU ministers agreed Nov. 20 to get tough on border security after the devastating Paris attacks, as prosecutors said a third body had been found following a police raid on the ringleader's hideout.

Hasna Ait Boulahcen, aged 26, detonated her explosive vest at Saint Denis on Wednesday, going down in history as the first female suicide terrorist operating in Europe. A video, obtained by the ABC, appears to have been shot from the building across the street where the explosion took place.

The suspected mastermind of the Paris attacks was questioned by German police at Cologne-Bonn airport early last year before he boarded a plane to Istanbul, Spiegel magazine reported on Nov. 19, quoting security officials. 

Amid gunfire and explosions, police raided a suburban Paris apartment where the suspected mastermind of last week's attacks was believed to be holed up Nov. 18. The siege ended with two deaths and seven arrests but no clear information on his fate.

Two suspected jihadists were killed, including a woman who blew herself up, in a shootout Nov. 18 in north Paris with police hunting the mastermind of last week's attacks on the French capital, sources said.