A small plane crashed in dense fog in a Murphy Canyon neighborhood early Thursday morning, presumably killing all six people onboard, injuring eight people on the ground and burning several cars and homes in military housing.

Authorities are investigating why a private plane crashed just before 4 a.m. Thursday in San Diego, killing an unknown number of passengers on the plane, damaging homes and igniting cars in the U.S. ...

Officials said eight people were treated for injuries, and one of them was taken to the hospital.