Death toll rises to 11 as Florence pours on the rain

Authorities ordered the immediate evacuation of up to 7,500 people living within a mile (1.6 kilometers) of a stretch of the Cape Fear River and the Little River, about 100 miles (160 kilometers) from the coast. The evacuation zone included part of the city of Fayetteville, population 200,000.

Officials in nearby Harnett County urged residents of about 1,100 homes to clear out because the Lower Little River was rising toward record levels.

One potential road out was blocked as flooding forced the shutdown of a 16-mile (26-kilometer) stretch of Interstate 95, the main highway along the Eastern Seaboard.

In New Bern , along the coast, homes were completely surrounded by water, and rescuers used inflatable boats to reach people.

Kevin Knox and his family were rescued from their flooded brick home with the help of Army Sgt. Johan Mackie, part of a team using a phone app to locate people in distress. Mackie rode in a boat through a flooded neighborhood, navigating through trees and past a fencepost to get to the Knox house.

"Amazing. They did awesome," said Knox, who was stranded with seven others, including a boy who was carried out in a life vest. "If not, we'd be stuck upstairs for the next ... how long? I have no idea."New Bern spokeswoman Colleen Roberts said 455 people in all were rescued in the town of 30,000 residents without any serious injuries or deaths. But thousands of buildings were damaged in destruction Roberts called "heart-wrenching."Across the Trent River from New Bern, Jerry and Jan Andrews returned home after evacuating to find carp flopping in their backyard near the porch stairs.

Coast Guard helicopters were taking off across the street to rescue stranded people from rooftops and swamped cars. Coast Guard members said choppers had made about 50 rescues in and around New Bern and Jacksonville as of noon.