Four people have been injured in a violent axe attack on a train in Paris on Monday, according to French media reports citing police sources. A fight involving several individuals, including minors, broke out on the RER E line at 8 am for an undetermined reason. One victim was diagnosed with a head wound, while another suffered an injury to one of their extremities. Two others sustained minor injuries, the reports said. The official X account for the RER E stated, “An incident on the TUVA train currently at the Ozoir station requires the train to remain at the platform. We are waiting for poli…