OKLAHOMA CITY ? Grassfires raged across the dry southern prairie Sunday, burning homes in Oklahoma City, destroying two small towns in Texas, and creating patchworks of flames as burning embers were blown by winds gusting up 50 mph.

At least a dozen wildfires were burning across Oklahoma. In Texas, more than 20 fires sprang up, including a 22,400-acre blaze threatening 200 homes near Carbon, about 125 miles west of Dallas.

Crews flying over the Texas communities of Ringgold, a town of about 100 people near Wichita Falls, and tiny Kokomo, near Eastland, reported both had essentially been wiped out by flames, officials said.

Over the past week, sporadic blazes set off by arcing power lines, fireworks and other sparks igniting the dry landscape had already ravaged more than 50,000 acres, destroyed nearly 100 homes and killed four people in Texas and Oklahoma.

On Sunday, officials warned the extreme fire danger would continue into the new week while the dry, warm and gusty conditions were expected to continue.