Crews were making progress Thursday toward containing a wildfire that has burned four mountaintop cabins and was threatening hundreds of other houses near Casper, according to the Associated Press. The fire about five miles (eight kilometers) south of Casper was 30 percent contained, said Vince Mazzier, spokesman for the federal management team that's directing the firefighting efforts. The fire made several runs overnight and pushed its size to well over 10,000 acres (4,000 hectares) - more than 15 square miles (38.4 square kilometers). «In total, I think we're making good progress on the fire,» Mazzier said. «If the weather holds today, I think we'll be getting quite a bit more progress. It's all weather dependent right now, and being able to get resources in to do the work.» About 350 firefighters were on the scene, Mazzier said. People in hundreds of homes on Casper Mountain and surrounding areas have been told to evacuate since the lightning-sparked fire was reported Monday. The fire had burned four cabins and was within a half-mile (800 meters) of many other houses, Mazzier said. There were no reports of injuries. «We have lots of displaced people,» Mazzier said. «And of course, they're always concerned about what's going on with their homes.»