Paris Attacks: 127 Dead After 'Terrorists' Using Suicide Vests Stage Multiple Attacks and Take Hostages

                           

French President Francois Hollande said at least 127 were killed on Friday in a series of six coordinated attacks in Paris that he described as an "act of war" -- blaming ISIS for the violence that included shootings, explosions and a hostage situation at a concert hall.

"And when faced with war, the country must take appropriate decisions," Hollande said on Saturday. "An act committed by a terrorist army, DAESH [ISIS], against what we are, a free country that speaks together with the planet."

Three days of national mourning in France has been declared, according to the French president.        Eight attackers are dead, and seven died detonating suicide vests, according to Agence France-Presse, citing police. A Syrian passport was found on the body of an attacker near one of the attack sites, the Stade de France stadium, police told ABC News.
                           

French police said they believed all of the attackers involved in the shootings and bombings were dead, but authorities were searching for accomplices.

Americans were among those injured, according to the State Department.

"?The U.S. government is working closely with French authorities to identify American victims," said Deputy Spokesperson Mark Toner. "We are aware there are Americans among the injured, and are offering them the full range of consular assistance."

According to Agence France-Presse, citing a police source, three of the attackers at the concert hall died when they detonated their suicide belts as police closed in. A fourth was shot dead by police. AFP said that three more attackers were dead outside the Stade de France soccer stadium and one on a street in eastern Paris.
                           

In the wake of the attacks, Hollande said he was imposing border checks and declaring a state of emergency. Anyone deemed dangerous could be placed under house arrest. Hollande called the attacks "unprecedented" and President Obama called them an attack "on all of humanity."

The two leaders shared a phone call on Friday evening where Obama expressed his condolences. "The President reiterated the United States' steadfast, unwavering support for the people of France, our oldest ally and friend, and reaffirmed the offer of any necessary support to the French investigation," the White House said.

In a tweet, the Elysee Palace said: "terrorists capable of such atrocities should know that they will face a determined and united France."