A witness to the carnage at Paris' Bataclan concert hall, where 100 people have reportedly been taken hostage and dozens killed, is saying that the attackers shouted "Allahu Akbar," Arabic for "God is great," as they fired into the crowd.
Via The Guardian:
Another witness, who was at the Batalclan with his mother, is currently in tears live on the radio station. He says he heard the assailants were screaming "Allahu Akbar" while shooting inside the crowd. [The Guardian]
Nothing yet is known about the identities of the shooters or their motives.