Four female US tourists were attacked with acid Sunday at a train station in Marseilles, southern France, a spokeswoman for the Prefecture of Police of Bouches-du-Rhône said.
Two of the women were taken to a hospital and two were in shock, police said. All four were in their early 20s.
The attacker was a 41-year-old woman who is mentally unstable, police said. She was arrested and hospitalized, according to CNN affiliate BFM.
Authorities added there’s no indication the attack was terror-related.