A knife-wielding attacker shouting "Allahu Akbar" beheaded a woman and killed two other people in a suspected terrorist act at a church in the French city of Nice on Thursday. Nice's mayor, Christian Estrosi, who described the attack in his city as terrorism, said on Twitter it had happened in or near Notre Dame church and was similar to the beheading of French teacher Samuel Paty in an attack this month in Paris.