Police: New Orleans 'completely destroyed'

NEW ORLEANS, Louisiana (CNN) -- Saying the city was "completely destroyed," the New Orleans deputy police chief on Monday urged remaining residents to get out because there is no power, drinkable water or supply of food.Deputy Chief Warren Riley told reporters that a week after Hurricane Katrina struck, thousands of people insisted on remaining in "a hazard.""We advise people that this city has been destroyed. It has been completely destroyed," Riley said."We are working with them to try to convince them that there is no reason -- no jobs, no food -- no reason for them to stay."