LOUISVILLE, Ky. (WHAS11) – Southern Indiana authorities are conducting a recovery effort on the Ohio River near the Falls of the Ohio.

Indiana's DNR PIO said around 12:40 p.m. authorities responded to a report of two male swimmers near the Falls of the Ohio in distress. One man is now out of the water and that swimmer's condition is not known. He was sent to the hospital.

Recovery efforts for the second swimmer are still underway as this man went under water and did not reappear.

Multiple fire departments are at the scene. Conservation officers are also on the scene. Sonar technology and a remotely operated submarine are being used to assist in the effort.

The Falls of the Ohio park is open at this time but officials are keeping the public out of the area they are searching.

Officials said the swimmers were not wearing life jackets.