Authorities found two bodies outside the wreckage of the South Korean Asiana Airlines Boeing 777 jetliner that crash landed on the runway Saturday at San Francisco airport.
Emergency rescue crews transported 182 passengers to the hospital, 49 in serious to critical condition, airport spokesman Doug Yakel said.
Several hours after the incident, all 307 passengers and crew on board were accounted for.
By the time firefighters extinguished the blaze, most of the upper half of the fuselage had burned off and the tail section was gone, with pieces scattered near the beginning of the runway. Officials said one engine may have broken away.
Investigator Mike Barr said it appeared the aircraft may have approached the runway too low and the landing gear or tail or both may have hit the seawall, which would have caused the passenger jet to slam into the runway.
FBI investigators ruled out terrorism, the San Francisco fire chief said, as teams of federal aviation and transportation investigators headed to the scene to figure out the sequence of events that caused Saturday's crash.