(CNN) South Carolina Gov. Nikki Haley urged residents on Sunday to plan on staying home at least through Monday due to flooding, and announced that because of the dangerous weather conditions, all interstate highways in and around the capital city of Columbia would be closed.
South Carolina Gov. Nikki Haley said Sunday that 600 National Guardsmen have been deployed to assist in rescues and evacuations in what she called "a thousand-year level of rain." The weather is to blame for three deaths in the state, Haley said at a news conference. "This is an incident we've never dealt with before," she said.
As teams from multiple agencies try to save people from their cars on flooded streets across South Carolina, officials are struggling just to keep count, the state's emergency management spokesman told CNN on Sunday.
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"It's a historic flood the likes of which we haven't seen," Eric Rousey said. Most of the rescue operations are being staged in Dorchester and Charleston, where at least 30,000 people are without power. Emergency officials said there were about 140 water rescues in Dorchester overnight.