CHATTANOOGA, Tenn. -- A mother, father and child were killed when a tree fell on their car during heavy rain and flooding in Tennessee, where submerged roads also led to dramatic rescues of people trapped in their vehicles, authorities said Wednesday.

The three were killed when saturated ground caused a large tree to fall in the Chattanooga suburb of East Ridge just after midnight, Hamilton County Office of Emergency Management spokesperson Amy Maxwell said.

Additionally, a body was found when authorities were searching for a man who was swept away when he ran past firefighters and a barricade that blocked a flooded road Tuesday, according to the Chattanooga Fire Department. The local police and medical examiner will determine the cause of death.

The flooding prompted rescues of people

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