All the attackers involved in terrorist shootings and explosions in Paris are believed to be dead, police said hours after at least 120 people were killed.

Police continue to hunt for any possible accomplices in the apparently co-ordinated attacks. A city-wide curfew remains in effect.

Canadians in France: For emergency assistance, contact consular officials at sos@international.gc.ca or call collect at 1-613-996-8885

Police said at least 100 people were killed in one concert venue alone. Security forces moved into the Bataclan concert hall around 1 a.m. local time Saturday to end a hostage crisis inside.

The Paris police prefect, Michel Cadot, said the attackers at the Bataclan blew themselves up with suicide belts as officers moved in. The attackers had been holding dozens of concert-goers hostage inside the venue.

Paris Prosecutor Francois Molins later said that the attacks involved six different sites across the city and that five attackers may have been killed in total.

The terror began around 9:45 p.m. local time. Within minutes, there was a mass shooting outside a restaurant, explosions outside a soccer stadium where French President Francois Hollande was in attendance, and the shootings and hostage-taking at Bataclan concert hall.

Hollande spoke shortly before midnight local time, declaring a state of emergency and announcing that the borders had been closed “to make sure we capture who is responsible.”

Hollande called the assailants “criminals and terrorists” and said that terrorists want “to scare us” but that France is a nation “that knows how to defend itself.”

Police first confirmed the shooting near Le Carillon and Le Petit Cambodge restaurants in the 10th arrondisement. They later said at least 11 were killed there.

Meanwhile, at least two explosions were heard near the Stade de France, the country’s national football stadium, while a France-Germany friendly football match was happening with President Hollande in the stands.

Gregory Goupil of the national police said three people were killed in two suicide attacks and a bombing outside the stadium.

Police also said about 100 people had been taken during the attack at the Bataclan on Boulevard Voltaire, where an Eagles of Death Metal concert was scheduled.

A statement on the band’s Facebook page said, “We are still currently trying to determine the safety and whereabouts of all our band and crew. Our thoughts are with all of the people involved in this tragic situation.”

Security Consultant David Hyde told CTV News Channel that “this certainly has some of the hallmarks of Islamist terrorism.”

“Paris has a very large number of returning fighters from Syria, Iraq,” Hyde said.

“The question now: Did (the attackers) have a plan to escape?”

“Obviously, shutting down the borders, shutting down the streets may help to a degree, but these people are going to go underground.”

Elliot Tepper, a senior fellow at the Norman Patterson School of International Affairs, told CTV News Channel that the attacks had to be “externally guided in some way,” especially if suicide bombers were involved.

“It’s odd that ISIS hasn’t claimed responsibility because even if they didn’t do it, it’s their kind of attack,” he said. “But it is a sad day for all of us. It is also a reminder to all of us of the fragility of our day-to-day peaceful existence here in Canada.”

Leaders react:

U.S. President Barack Obama called the attacks were “an outrageous attempt to terrorize innocent civilians” and offered his condolences to the French people and support “whatever assistance” is needed.

“We want to be very clear that we stand together with them in the fight against terrorism and extremism," he said.

Prime Minister Justin Trudeau told reporters Friday night that Ottawa has offered “all of our help and support” to the government and people of France.

“Our hearts and thoughts and our prayers go out to our French cousins through this dark and terrible time,” he said.

He said he has met with his national security advisers in the wake of the Paris attacks and “we are doing everything to make sure that Canadians are secure.”

With files from The Associated Press

Locations of the attacks:

Social media from Paris:

A French journalist took images after gunmen opened fire on a restaurant in the 10th district.

Tirs à la Kalash au petit Cambodge dans le 10 ème à #Paris plusieurs morts. Secours et police sur place #tir pic.twitter.com/BBKaYocMz7 — Vincent Berthézène (@Vince66240) November 13, 2015

The sound of an explosion can be heard during a France-Germany match at the Stade de France.

And shortly after the explosions, spectators flooded the pitch.

Confused fans have flooded the pitch here in #Paris pic.twitter.com/8HleYh5WiL — Andy Scott (@andpscott) November 13, 2015

Victor Boyko lives near the Bataclan and posted video of police officers approaching.