Investigators in San Francisco are working to determine whether one of the two teenage girls who died when her Asiana flight crashed into the runway was stuck by rescue crews.
Coroner Robert Foucrault said senior San Francisco Fire Department officials notified him that one of the girls may have been struck on the runaway.
Mr Foucrault said a post-mortem examination he expects to be completed by later today will involve determining whether the girl's death was caused by injuries suffered in the crash or "a secondary incident".
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The crash happened at about 7.20am local time as the plane was heading for Misrata in Libya.