One of the attackers at a Paris concert hall where at least 15 people were killed Friday fired into the crowd shouting "Allahu akbar" (God is greatest), a witness said. France has declared a state of emergency after at least 39 people have been killed in attacks across seven locations across the capital. A series of explosions and gunshots were heard around the Paris Bataclan concert hall where hostages were being held, two Reuters witness at the scene said. French President Francois Hollande said earlier that an assault was underway after a spate of attacks across the French capital. Reuters witnesses heard five successive explosions followed by gunshots.
