NEW : Eight people on the plane are believed to be killed . National Air Cargo is a customer , he said . Comment: A statement from ISAF says plane was not one of theirs . `` Early reports indicate the plane is an L-100 Hercules , '' ISAF say .
NEW : Eight people on the plane are believed to be killed . Comment: A statement from ISAF says plane was not one of theirs . `` Early reports indicate the plane is an L-100 Hercules , '' ISAF say .