A medical transport jet crashed in Philadelphia shortly after take-off, resulting in an explosion that damaged several homes. The jet carried a child patient, another passenger, and four crew members. The company Jet Rescue Air Ambulance has not confirmed any survivors. Mayor Cherelle Parker stated that the scene is still active and under investigation. This incident follows a recent deadly air disaster in Washington DC. The plane, a Learjet 55, was en route to Springfield, Missouri, and quickly disappeared from radar after take-off.