Marseille

Four young female U.S. tourists were attacked with acid Sunday in the French city of Marseille by a woman with "deep psychological problems" who has been arrested, the Marseille prosecutor's office said according to AP. 

The attack took place shortly after 11am at the Gare de Marseille-Saint-Charles station, where the party from the US was preparing to board a train. The 41-year-old attacker used a cleaning substance containing hydrochloric acid that she is thought to have picked up from a local DIY store.

French police used water cannons and tear gas to break up a picket that was blocking access to a large oil refinery in the southern port area of Marseille, as Prime Minister Manuel Valls told the unions that "enough is enough." Valls went on to say that if labor unions continue to picket and disrupt fuel supplies, that they would be dealt with "extremely firmly."