The evacuation of Hurricane Katrina refugees from the Superdome in New Orleans was suspended today after shots were fired at a military helicopter, an ambulance official overseeing the operation said. No immediate injuries were reported.

Hurricane Katrina probably killed thousands of people in New Orleans, the city’s mayor said today.

At least 25,000 of Hurricane Katrina’s refugees, a majority of them at the New Orleans Superdome, will travel in a bus convoy to Houston today and will be sheltered at the 40-year-old Astrodome, which hasn’t been used for professional sporting events in years.