Eyewitness reports are saying that one of the attackers in the Bataclan arts center Eagles of Death Metal show shouted "Allahu akbar" before firing into the crowd in attendance.
At least 15 people were killed near the Bataclan arts centre, where up to 100 people were being held hostage.
Explosions and gunfire are being reported as police storm the venue.
Three people were killed in an attack in a bar near the Stade de France, with some reports suggesting a suicide blast.
Paris residents have been asked to stay indoors and military personnel are being deployed across Paris.
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