( CNN ) -- An explosion at a North Carolina chemical plant Saturday ignited a fire and forced the evacuation of some 750 people , an official said . The local fire department received a call about an explosion at Chemical Coatings Inc. around 3 p.m . ET , said Denise Michaud , Caldwell County health director . The blast ignited a fire , which was under control , but still burning Saturday at 6 p.m . ET , she said . Aerial video of the scene showed huge plumes of white smoke rising as firefighters blasted the blaze with water . No injures were reported . Residents living within one mile of the plant , which makes aerosols and other coating products , were told to evacuate , Michaud said . It was not immediately known what caused the explosion .
About 750 people were forced out of their homes . No injuries were reported . The explosion at Chemical Coatings Inc. ignited a fire . A second blast occurred in the same area about an hour later, but no one was injured.