San Francisco City Hall in the US state of California is lit up with blue, white and red, the colors of the French flag, following the Paris terror attacks. US Secretary of Defense Ashton Carter spoke on the phone with French Defense Minister Jean-Yves Le Drian on Saturday, saying the United States was "committed to helping France in any way" and that the two would remain in close contact.

"Tonight the sails of the Opera House will be lit in the blue, white & red of the French flag. We mourn with you and stand with you, Paris," tweeted Mike Baird, premier of Australia's state of NSW. "Our hearts break with yours, Paris. But our spirits will never be broken," he wrote on Facebook. "Neither will our determination to stand together against these cowardly, evil acts of terror."

The landmark CN Tower in Toronto was also lit with blue, white and red lights. Canadian PM Justin Trudeau said it was too soon to say whether the deadly attacks would prompt him to reconsider his pledge to withdraw Canada from air strikes against "Islamic State" militants in the Middle East. "Our hearts and thoughts and prayers go out to our French cousins in this dark and terrible time."

The High Roller at The LINQ Promenade on the Las Vegas Strip was also lit up with the blue, white and red colors. US President Barack Obama and German Chancellor Angela Merkel led a global chorus of solidarity with France. UN Secretary-General Ban Ki-moon condemned the "despicable attacks," while Pope Francis called the killings "inhuman."

The Oriental Pearl TV Tower in Shanghai's Lujiazui financial district was bathed in the French flag colors for one hour on Saturday. Foreign Ministry spokesman Hong Lei said China was "deeply shocked" by the attacks and pledged solidarity with France in combating terrorism. "China resolutely supports France in maintaining its national security and stability and in attacking terrorism," Hong said.

The Angel de la Independencia monument in Mexico City, a very popular tourist attraction, was also demonstrating its support and identification with the tragic events. At the same time, French authorities have closed the Eiffel Tower, the Louvre Museum and other top tourist sites in Paris until further notice following the deadly terror attacks.

The Sky Tower in Auckland is to be lit up Saturday night in the colors of the French flag. New Zealand Prime Minister John Key spoke of his huge relief on hearing that daughter Stephie, an art student in Paris, was safe. Key also expressed his condolences to the people and government of France, saying that "our hearts go out to those involved and our thoughts are with them and their families."

The Senate building in Mexico City was also expressing solidarity with Paris by lighting its office lights in the colors of the French flag. France will increase security at French diplomatic missions and official buildings around the world, Foreign Minister Laurent Fabius said. French President Hollande has declared three days of mourning and raised the nation's security to the highest level.

From Taipei to Paris: Taiwan's landmark building Taipei 101 is lit up in blue, white and red. In France, hospital officials say at least 300 people were injured in Friday's attacks, of whom some 80 are in a critical condition. The "Islamic State" group has claimed responsibility, and a French national has been identified as one of the four men who stormed the Bataclan concert hall in one attack.

The One World Trade Center in New York, the skyscraper built on the site of the September 11 attacks of 2001, was also illuminated in the French national colors. World leaders united in sympathy and indignation, New York police increased security measures. A State Department spokesman has confirmed that Americans are among the injured in the attacks.

A gunman opened fire at a Christmas market in the eastern city of Strasbourg, home to the European Parliament. At least two people were killed and 12 injured. Prosecutors opened a terror investigation. France immediately raised its national security alert to its highest level in anticipation of copycat attacks.

A man wielding a knife attacks bystanders in a central neighborhood in Paris, killing one person and wounding another four. French prosecutors open a terror probe into the attack, citing witness accounts that the assailant shouted "Allahu akbar" ("God is greatest"). The militant "Islamic State" (IS) group claims responsibility for the attack, calling the knifeman one of their "soldiers."

An attacker claiming allegiance to IS perpetrates a string of violent crimes in the southern town of Trebes during the morning hours. He kills a man while stealing a car and then fires shots at police officers before entering a Super U grocery store, where he takes hostages. Police shoot dead the attacker. Four people are killed, including including policeman Arnaud Beltrame.

A man fatally stabs two women at the Marseille train station. The perpetrator, Ahmed Hanachi, is shot dead by police on patrol. IS claims responsibility for the attack in a post by its news agency Amaq. In it, they call Hanachi one of the group's "soldiers." Two Interior Ministry officials resign after it is revealed that Hanachi was an undocumented immigrant who they had failed to detain.

A gunman opens fire on police on the Champs-Elysees, Paris' most iconic boulevard. One police officer is killed and two individuals are injured before police shoot the gunman dead. A note praising IS is found next to the gunman's body. The terrorist group also claims responsibility. The attack occurs just days before the first round of the French presidential election. Security is tightened.

Soldiers shoot and severely injure a knife-wielding man outside the Louvre museum in Paris after he assails them. One soldier is lightly injured. The attacker had two further machetes in his backpack. A subsequent investigation reveals the Egyptian national had traveled to France from Dubai on a valid tourist visa. A Twitter account associated with the man's name refers to IS in posts.

Two teens enter a church in Saint-Etienne-du-Rouvray, Normandy and slit the throat of an 85-year-old priest in front of five parishioners. Police shoot the 19-year-olds dead as they try to leave. IS takes responsibility and publishes a video of the teens pledging allegiance to the group. Many French Muslims attend the next Sunday's Mass to show solidarity with Catholics and condemn the attack.

On Bastille Day, France's national holiday, a truck drives through crowds in Nice that had gathered to watch the fireworks on a major seaside promenade. Before being shot dead by police, the driver kills 86 and injuries more than 400 others. IS claims responsibility, stating that the attacker had responded to IS calls to target civilians living in coalition nations fighting IS in Syria and Iraq.

France's most deadly terror attack: IS jihadis armed with automatic weapons and explosives undertake coordinated attacks in Paris including at the Bataclan concert hall, the national stadium and various street cafes. The mass shootings and suicide bombings kill 130 people, injuring hundreds more. IS claims responsibility. Then-President Francois Hollande calls it an act of war by IS.

A deadly attack is averted: On a high-speed train from Amsterdam to Paris, a man opens fire with an assault rifle that subsequently jams. Other train passengers tackle the man, preventing deadly violence. Four are injured including the attacker. The assailant had been known to French security officials for past drug-related activities and statements in defense of radical Islamist violence.

Yassin Salhi beheads his boss and displays the head, along with two Islamic flags, on the gate outside a gas plant near Lyon. He also tries to blow up the factory by driving his van into the gas cylinders. The attempt fails, but unleashes a smaller explosion, injuring two. French authorities claim links between the man and IS. He commits suicide in prison.

Two men with automatic guns storm the offices of satire magazine Charlie Hebdo, killing 12 and wounding 12 others. A different gunman kills a police officer the next day, then four more during a hostage-taking on January 9 at a kosher grocery. Police eventually shoot all three gunmen dead, but not before they claim allegiance to IS and al-Qaida.