#Parisattacks: World leaders rally behind France

In a statement yesterday evening, Obama said the attacks were an "outrageous attempt to terrorise civilians" and that his country was ready to provide France with any help it required.

"France is our oldest ally, the French people have stood by the American people time and again, we want to be very clear that we stand together with them in the fight against terrorism and extremism," he said.

"We're going to do whatever it takes to work with the French people and nations around the world to bring these terrorists to justice and to go after any terrorist networks that go after our people."

LISTEN - witnesses have recounted the horrors of the attack. 

Obama said he would not speculate on who was responsible for the attacks, which struck multiple locations across Paris, including the Stade France football stadium where the French team were playing Germany in a friendly, and the Bataclan art centre where scores were shot dead.

A statement released by US Department of Homeland Security said it was closely monitoring the situation in France but was not aware of "specific or credible threats of attack" on US territory.

See President Obama's address below: 

Obama's comments were echoed by David Cameron, British prime minister, and other world leaders, who took to social media to express their solidarity.

A statement by the German Foreign Office on behalf of Chancellor Angela Merkel said she was "deeply shocked" by the attack and conveyed her sympathy and solidarity.

Frank-Walter Steinmeier, the German foreign minister, was pictured sitting next to French President Francois Hollande during the match at the Stade France stadium.

Russian President Vladimir Putin also expressed his condemnation following the "horrible terrorist attacks", sending his condolences to the French people and Hollande in a statement published by the Russian foreign ministry.

"Russia strongly condemns this inhumane killing and is ready to provide any and all assistance to investigate these terrorist crimes," Putin said.

Recently elected Justin Trudeau, Canadian prime minister, said his government was offering its help to France and that he had discussed the security situation in his own country with officials.

"I've been speaking with our national security team to ensure everything is being done to keep people safe," Trudeau said, according to the National Post newspaper.

Iran's President Rouhani joined Western counterparts in condemning the attack and the "evil scourge of terrorism", the state-owned Press TV reported.

"I strongly condemn these inhumane crimes and condole with the bereaved French nation and government,” President Rouhani said.

Yesterday's attacks were the latest in a series of deadly incidents the country has experienced this year.

In January the offices of the Charlie Hebdo magazine in Paris were attacked by armed men claiming allegiance to al-Qaeda.

The attack left 12 people dead and was quickly followed by an attack on a kosher supermarket in the city, which killed four people.

In May, Germanwings flight 9525 came down in the French Alps killing all 150 people on board after what investigators suspect was a deliberate act by one of its pilots.

(File photo: Getty Images)