A helicopter crashed into a house early Sunday, killing two people in the aircraft, but five people were uninjured, AP quoted police as saying. The helicopter crashed through the roof of the house at about 5:30 a.m., police Sgt. Eric Larsen said in a news release. Fog was reported in the area at the time, but there was no immediate indication if that played a role in the crash. Federal Aviation Administration spokesman Tony Molinaro said the helicopter was a 2006 Robinson R-44 that was registered to Midwestern Air Services of Kenosha. Molinaro said the pilot did not appear to have filed a flight plan. He said the FAA had just started its investigation and will turn all information and evidence over to the National Transportation Safety Board. A phone listing for Midwestern Air Services could not immediately be found.