AT LEAST 30 people have been killed and around 100 others are being held hostage following a series of attacks in Paris on Friday night.
Police say there have been multiple shootings and two explosions across the French capital.
The area around the attack has been cordoned off and French president Francois Hollande has warned Parisians to stay indoors.
One of the shootings took place at the Bataclan theatre in the 11th arrondissement, where police say around 100 people are still being held hostage.
Witnesses at the theatre have reported seeing two armed men enter the building and open fire.
In the 10th arrondissement - not far from the offices of magazine publisher Charlie Hebdo - police say 11 people were killed near a restaurant.
Witnesses have described seeing bodies lying in the streets. According to local media reports, the gunmen have not been caught.
Elsewhere in the capital, several explosions were heard near the Stade de France, where the national football team was playing Germany.
President Francois Hollande was inside the stadium at the time, but has since been rushed to the Interior Ministry to deal with the unfolding situation.
An Associated Press reporter who was at the stadium has recounted hearing two explosions that were loud enough to penetrate the sound of cheering fans.
Those at the stadium can be seen rushing onto the pitch after hearing the explosions.
Irish people in Paris who need to contact the Embassy can do so at +33144176700.
— IrelandEmbassyParis (@IrlEmbParis) November 13, 2015
This is a shocking attack on humanity. Our thoughts and prayers are with the victims and families. We stand with France tonight.
— Enda Kenny (@EndaKennyTD) November 13, 2015
Dreadful news emerging from Paris. Irish embassy Paris can be called at +33144176700
— Charlie Flanagan (@CharlieFlanagan) November 13, 2015
US security officials believe the attacks were coordinated.
The White House says US President Barack Obama has been briefed on the situation.
David Cameron said he was "shocked" by the unfolding atrocity in Paris and vowed the UK will do "whatever we can to help".
The Prime Minister said his "thoughts and prayers" were with the French people as reports of the shootings came through.
Labour leader Jeremy Corbyn said the attacks were "heinous and immoral".
Mr Cameron said: "I am shocked by events in Paris tonight.
"Our thoughts and prayers are with the French people. We will do whatever we can to help."
Mr Corbyn said: "My thoughts are with the people of Paris tonight. We stand in solidarity with the French.
"Such acts are heinous and immoral."