Four American students were attacked with acid in Marseille's main train station on Sunday by a 41-year-old woman who has been arrested.

A spokeswoman for Marseille's prosecutor told The Associated Press that two of the students have been injured in the face in the attack in the Saint Charles train station, and one of them has a possible eye injury. All four women were hospitalized but have since been released.

The four women have been identified as students at Boston College in Massachusetts. A statement released by the college said all four were juniors studying abroad, three of them at the college's Paris program.

The director of the college's Office of International Programs, Nick Gozik, said the women have been released from the hospital and "it appears that the students are fine, considering the circumstances."

The students were identified as Courtney Siverling, Charlotte Kaufman, Michelle Krug and Kelsey Korsten.

French authorities are not investigating the acid attack as an act of terrorism for the time being.

The Paris prosecutor's office said that its counter-terrorism division had not assumed jurisdiction for the attack at Marseille's main train station on Sunday morning. The prosecutor's office has responsibility for all terror-related cases in France.

The spokeswoman said earlier that the 41-year-old woman arrested as a suspect in the attack did not make any extremist declarations, but said officials couldn't rule out terror as a motive so early in the investigation.

Regional newspaper La Provence, quoting unidentified police officials, reported that the suspect had a history of mental health problems and didn't try to flee the site of the attack.

The spokeswoman said there were no immediate indications that the attack was terror-related but adds that officials can't be 100 percent sure about ruling out terror links at such an early stage of the investigation.

An embassy spokesman said Sunday that the U.S. consulate in the southern port city of Marseille is communicating with French officials about the attack at Marseille's main train station.