Firefighters were battling 175 wildfires that erupted across South and North Carolina overnight amid windy and dry conditions, threatening homes and prompting evacuations, authorities said.

There are ongoing response operations to more than 175 wildfires that have burned a combined 4,200 acres across the state — including blazes burning in Horry, Spartanburg, Oconee, Union and Pickens counties, the South Carolina State Fire Marshal said Sunday.

One of the biggest wildfires raging Sunday morning was threatening residents in the Carolina Forest near Myrtle Beach, South Carolina, in Horry County, officials said.

The quick-spreading fire in the Carolina Forest had burned more than 1,200 acres by Sunday morning and was threatening the communities of Walker Woods and Avalon, according to the South Carolina Forest Commission. The fire was 0% contained, officials said.