EDINBURGH, Ind. -- Emergency responders continue to search for a possible drowning victim in the Big Blue River.

At approximately 5 p.m. Jan. 25, a 911 caller notified emergency services that they saw a male subject fall from a dam into the Big Blue River.

The caller described the subject as a blonde-haired white male with a thin build wearing blue jeans and a red shirt.

Emergency responders searched the area with drones, by watercraft and by foot but could not find a trace of the man.

Downstream, from where the subject was seen falling into the river, is where the search continued on Saturday.

Responders are probing the shoreline with spike poles, surveying the area with drones and utilizing boat patrols.

Local law enforcement have been following tips, watching surveillance footage from area businesses and contacting local schools.

The search will continue until dusk but with current river conditions and falling temperatures, the difficulties are mounting.

No one fitting this description of the subject has been reported as missing from the Edinburgh area. The Johnson County Sheriff's Department is asking anyone who may know someone matching this description to contact them at 317-736-5155.

Responding agencies include the Ninevah Fire Department, Johnson County Sheriff Department, Indiana Conservation Officers, Shelby County Water Rescue Team, Franklin Fire Department, Columbus Fire Department, Bargersville Fire Department and Edinburgh Police Department.