NEW ORLEANS (AP) -- It's been a rough day in Louisiana.

Hurricane Isaac came in, dumped a foot of water in some places, hitting Plaquemines (PLAK'-uh-minz) Parish the hardest.

The Louisiana National Guard brought in 14 high-water vehicles and 10 boats, and as many as 70 people were rescued from homes with water up to their roofs. Officials in the parish, south of New Orleans, say a levee under severe pressure from floodwaters will have to be punctured. At least one death is blamed on the storm.

Isaac, now a tropical storm, has knocked out power to as many as 700,000 people, stripped branches off trees and flattened fields of sugar cane so completely that they looked as if a tank had driven over them.

The mayor of New Orleans has ordered a dusk-to-dawn curfew and police are reporting few problems with looting.

Isaac is moving across the state at only 5 mph -- which is about the pace of a brisk walk. That means the threat of storm surges and flooding will continue for a second night.