An aerial picture shows an Interstate 95 (I-95) exit sign submerged in floodwater caused by Hurricane Florence in Lumberton, North Carolina, U.S. September 17, 2018.

Floodwater-damaged homes are seen from the air, caused by Hurricane Florence, now downgraded to a tropical depression, near Lumberton, North Carolina, U.S., September 17, 2018. REUTERS/Jason Miczek

School buses, seen from the air, sit in floodwater caused by Hurricane Florence in Lumberton, North Carolina, U.S. September 17, 2018.

The American Plush Textile Mills building sits in floodwater caused by Hurricane Florence on the outskirts of Lumberton, North Carolina, U.S. September 17, 2018.

Houses sit in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

A man waves as others are seen in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

Houses sit in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

A church sits in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

People stand on a truck in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S., September 17, 2018.

A building sits in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

Cars sit in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

A tractor trailer sits on its side after being washed over Route 301 from flood waters caused by Hurricane Florence near Dillon, South Carolina, U.S. September 17, 2018.

The Rock Hill Missionary Baptist Church is seen in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

Houses sit in floodwater caused by Hurricane Florence, in this aerial picture, on the outskirts of Lumberton, North Carolina, U.S. September 17, 2018.

Vehicles are seen from the air, in front of blocked flooded road, caused by Hurricane Florence in Lumberton, North Carolina, U.S. September 17, 2018.

People and vehicles gather in front of a building near floodwater caused by Hurricane Florence, seen from the air, in Lumberton, North Carolina, U.S. September 17, 2018.

Houses sit in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

A man stands outside a flooded house caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

Rescuers gather in front of a flooded house caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

People move furniture in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

A tractor trailer sits on its side after being washed over Route 301 from flood waters caused by Hurricane Florence near Dillon, South Carolina, U.S. September 17, 2018.

A tractor trailer sits on its side after being washed over Route 301 from flood waters caused by Hurricane Florence near Dillon, South Carolina, U.S. September 17, 2018.

A damaged sign sits in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

An aerial picture shows a flooded Interstate 95 (I-95) after Hurricane Florence in Lumberton, North Carolina, U.S. September 17, 2018.

Rescuers patrol in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.

Houses sit in floodwater caused by Hurricane Florence, in this aerial picture, near Lumberton, North Carolina, U.S. September 17, 2018.

People gather on a truck in floodwater caused by Hurricane Florence, now downgraded to a tropical depression, in Lumberton, North Carolina, U.S., September 17, 2018.

An education administration building sits in floodwater caused by Hurricane Florence, in this aerial picture, in Lumberton, North Carolina, U.S. September 17, 2018.