Emergency responders are searching for a boater who went missing on Dog River Thursday morning.

According to Fox10 News, the Mobile Fire-Rescue department was notified just before 11 a.m. regarding a capsized boat and a man in the water.

Officials from the fire department and Mobile police were subsequently dispatched to the river.

The capsized boat has already been located, according to authorities.

According to the news station, an eyewitness said they saw the boater lose control of his boat before it capsized.

The Alabama Law Enforcement Agency has taken over the investigation into the incident as crews continue to search for the boater.