A small plane crashed into two mobile homes today in Laurel, Maryland, leaving the pilot with serious but not life-threatening injuries, WUSA-9 reports. Witnesses say they heard "sputtering" above and suspected something was amiss; they came outside to investigate and heard the crash. The 70-year-old pilot was spotted on the ground, bleeding. A wing of the plane went through one mobile home, but there was no one inside at the time; police say no one on the ground was hurt. The trailer park is close to a flight school.