OIL CITY, Pa. (EYT) — A woman was rescued from the Allegheny River in Oil City on Tuesday afternoon.

According to a representative of Venango County Emergency Management, the call came in around 1:13 p.m. for a report of a nude woman in the river.

Oil City Fire Department — Station 14, Community Ambulance, and the Oil City Police Department were dispatched to the scene.

According to Oil City Chief of Police Robert Wenner, the woman “took off all of her clothes and walked into the river.”

Chief Wenner noted that authorities remain uncertain about the woman’s motive for walking into the river, and were considering the possibility she was suffering a mental health crisis or may have been under the influence of a controlled substance.

According to Chief Mark Hicks of the Oil City Fire Department, a fisherman called 9-1-1 after he saw the woman and heard her call for help.

Chief Hicks said when his department arrived on the scene, they first attempted to throw the woman a rope rescue bag.

“She did not even attempt to grab onto it at that point, so we knew her condition was grim,” Hicks said.

Though the department’s boat had been launched, it had not yet reached the scene, which Chief Hicks said was just north of the ice device in the river, when personnel on the shore realized the woman in danger.

At that time, firefighter Noel Bartlett entered the water and swam out to rescue the woman, while firefighter John Horn assisted from the Northside shore by anchoring Bartlett and pulling him in once he had secured her.

After being pulled from the river, the woman was transported to UPMC Northwest for treatment.

Bartlett was also transported to UPMC Northwest for treatment of hypothermia and released later Tuesday afternoon.

Further information about the woman’s condition has not been released.

The scene was cleared around 3:11 p.m.