NEW ORLEANS (AP) — Tens of thousands of customers remained in the dark Monday in Louisiana and Mississippi, nearly a week after Isaac inundated the Gulf Coast with a deluge that still has some low-lying areas under water.

Most of those were in Louisiana, where utilities reported more than 100,000 people without power. Thousands also were without power in Mississippi and Arkansas.

President Barack Obama visited Monday, a day ahead of the Democratic National Convention, and walked around storm damage in St. John the Baptist Parish, where subdivisions were soaked in water from Isaac.