MIDWEST CITY -- Even as firefighters continue to douse hot spots and watch for flareups, investigators are digging today into the cause of the wildfire that destroyed 17 homes and damaged many more in the Midwest City limits. "We would like to know what caused the fire," Midwest City Fire Marshal Jerry Lojka said. The first fire was reported about 3 p.m. Thursday at SW 29 and Post Road, quickly growing into an inferno that devastated the Turtlewood, Windsong and Oakwood additions, among others. More houses, barns and outbuildings burned in Choctaw and other places in eastern Oklahoma County, with today's tally standing at about 100 structures for the entire county. It won't be easy, Lojka said, but he does think it is possible to determine the cause of the Midwest City fire. Lojka said during a noon update that two or three subdivision residents had smoke inhalation injuries, and many firefighters got soot in their eyes but none had serious injuries. "We all want to get back to normalcy, but unfortunately it's going to be a long time for some of these folks who lost their homes," Lojka said. He said about 75 people spent the night in the shelter, but all residents were released to go back to their homes at 7:30 this morning. He said the community center is not scheduled to be open as a shelter with sleeping cots tonight. While more than 100 structures were destroyed in Oklahoma County Thursday, officials estimate than only about 40 of those were homes. In the Midwest City/Choctaw area, officials said there were an estimated 2,000 acres burned, affecting 60 homes with 34 homes totally destroyed — 17 in Midwest City and 17 in Choctaw. While the Bryant and her family were preparing to see their neighborhood, residents in Oakwood East were slowly returning to the random devastation throughout the hard hit neighborhood. At Lake Stanley Draper, Oklahoma City fire crews battled brush and structure fires across more than two square miles east of Lake Stanley Draper yesterday, Deputy Fire Chief Cecil Clay said. At least a dozen houses have burned east of the lake . The burned area includes the land between SE 119 to SE 149 and Hiawassee and Anderson Roads. And the extinguished fires started to pick up again just north of SE 149 late Friday morning.