At least 18 people have been killed in several shootings in the French capital, Paris, as well as explosions near the Stade de France.
French media say at least 15 people have been killed near the Bataclan arts centre. A hostage taking is under way, with reports of up to 60 held.
At least one man opened fire at a restaurant in the 11th district, causing several several casualties.
Three explosions are also reported outside a bar near the Stade de France.
France were hosting Germany in a friendly and the match continued. It has now ended.
A BBC journalist at the Petit Cambodge restaurant reported he could see 10 people on the road either dead or seriously injured.
An eyewitness told Liberation he had heard more than 100 rounds being fired at a cafe in rue de Charonne.
There are reports of up to six gunmen involved.
Reports say French President Francois Hollande was watching the match at the Stade de France and has been moved to safety.
Mr Hollande and Interior Minister Bernard Cazeneuve have gone to the interior ministry.
The U.S. security officials believe the series of attacks that shook Paris on Friday night were likely coordinated based on initial reports, a person familiar with developing intelligence assessments said.
“This clearly looks like a coordinated series of attacks,” the person said.