During the sixth national strike after the summer vacation protesting the French pension reform, sporadic violence erupted Tuesday between young demonstrators and riot police in Paris' suburb. According to local media, some 200 high school students rallied in northern Paris suburb Naterre, where confrontation between students and riots police took place on Monday. The youngsters torched a car and projected smoking substance to riot police. Last morning, police arrested a dozen of young delinquents senting fire to a car and destroying a bus station while dispersing their blockage near a school. 