In less than a week after the Paris attacks, French police have managed to track and kill one of the most-wanted Islamic State jihadists and a "ringleader" of the carnage, Abdelhamid Abaaoud.

However, as investigators weave together a complex web of clues pointing to a sophisticated logistical operation that took place under the nose of European intelligence officers, several burning questions remain.

Colombia is investigating a Syrian woman with ties to radical Islam, who traveled to Paris ahead of the attacks on a stolen Israeli passport, sources at the state prosecutor's office said Thursday.

Seham Al Salkhadi left ahead of Friday's attacks on a direct flight from Bogota to the French capital's Charles de Gaulle airport, traveling under the name of Ashira Krieger, the sources said.

Iran on Thursday accused countries backing a U.N. resolution criticizing its rights record of spreading "Iranophobia" and said they should instead focus on the threat from violent Islamic extremists.

The resolution drafted by Canada was backed by a vote of 76 to 35 with 68 abstentions in a U.N. General Assembly committee. Support for the measure dropped by two votes from last year.

Some of the suspects in the Paris attacks took advantage of Europe's migrant crisis to "slip in" unnoticed, the French premier said Thursday, warning the EU needed to "take responsibility" over border controls.

Manuel Valls said the EU's cherished passport-free Schengen zone would be in danger if the bloc did not improve border controls, after it emerged the ringleader of the Paris attacks had managed to enter Europe unnoticed. 

France asked the U.N. Security Council on Thursday to authorize countries to "take all necessary measures" to fight the Islamic State group after the jihadists claimed responsibility for the Paris attacks.

A draft resolution presented to the 15-member council called on U.N. member states to "redouble and coordinate their efforts to prevent and suppress terrorist acts" committed by IS and other extremist groups linked to al-Qaida. 

The House of Representatives voted Thursday to ban Syrian and Iraqi refugees from entering the United States until stricter screening measures are in place, a move some slammed as giving in to xenophobia after the Paris attacks.

The Republican legislation, the first congressional response to last week's attacks, passed overwhelmingly, 289 to 137, with nearly four dozen Democrats bucking their president to support the measure.

A U.N. General Assembly committee on Thursday adopted by a record majority a resolution condemning "gross" widespread human rights violations in North Korea.

The measure now goes to the full General Assembly for a vote next month, but the strong endorsement reflected growing calls for action to address the dire human rights crisis in the reclusive country.

Italian police have arrested two Syrians trying to travel to Malta on false passports who had Islamic State (IS) related images on their phones, local media reported Thursday.

The two men, aged 19 and 30, were apprehended at Bergamo airport near Milan late Wednesday after presenting Austrian and Norwegian passports but answering only to Arabic, the Eco di Bergamo daily said.

A 19-year-old who spent his student loan traveling to the Turkey-Syria border and wanted to join the Islamic State group is behind bars in Britain, police said Thursday.

Yahya Rashid paid £906 (1,300 euros, $1,400) for himself and four friends to travel to the Turkish border town of Gaziantep in February.

Hillary Clinton called Thursday for a U.S.-led global fight to defeat the Islamic State group and shut down its flow of fighters, propaganda and weapons in the wake of the Paris attacks.

The lead Democratic presidential candidate outlined a three-pronged strategy to defeat IS, disrupt and dismantle the infrastructure that facilitates the flow of arms, fighters and propaganda across the world, and to bolster international defenses against radical jihadism.