Swedish authorities are interrogating a suspect arrested for plotting a "terror attack", authorities said Friday as security is tightened following last week's carnage in Paris.

Defense Minister Peter Hultqvist told the Swedish daily Expressen that authorities were hunting for more suspects.

Russia plans to unveil a bronze "Wall of Grief" in Moscow next year in its first tangible condemnation of Stalin-era crimes but critics accuse the government of playing a double game.

The national memorial, backed by President Vladimir Putin, comes as authorities play down the horrors of Stalin's purges and revive some of the Soviet Union's ideology and traditions.

Hussam al-Roustom lost everything in Syria. After fleeing the horrors of war, he's working 12-hour night shifts in a bakery, learning English and watching his children flourish in America.

After resettling in Jersey City as a refugee, he now has a message for the country that gave him a second chance.

A defiant New York on Thursday stared down an Islamic State propaganda video threatening the city as White House hopeful Hillary Clinton called for a U.S.-led global fight to defeat the extremists.

Less than a week after attacks claimed by the group killed 129 people in Paris, an IS video showed a man preparing a suicide vest and fingering its trigger, interlaced with footage of New York's Times and Herald Squares.

More Mexicans returned home from the United States over the last five years than immigrated to the country, according to research out Thursday.

The Pew Research Center study of government data from both nations showed that between 2009 and 2014 about one million Mexicans and their families -- including U.S.-born children -- returned home from the United States.

Noisy rallies Thursday marked the end of weeks of campaigning in Argentina's first ever presidential run-off, which could see a pro-business right-winger end 12 years of leftist government.

Right-wing candidate Mauricio Macri, an economic liberal who polls show could win Sunday's vote, joined in an indigenous earth ceremony in the Andes before appearing in front of supporters.

Czech Prime Minister Bohuslav Sobotka on Thursday said jihadists appeared to have been using the EU member as a gateway to France.

"The Czech Republic is considered a safe bet," Sobotka said, adding that passengers coming from such countries "attract less attention" than those arriving from areas hit by terrorism.

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.