The two dead passengers have been identified as students from China _16 and 17 years old_ who were scheduled to attend summer camp in California with dozens of classmates. Hospital officials said Sunday that two of the people who remained hospitalized in critical condition were paralyzed with spinal injuries, while another two showed "road rash" injuries consistent with being dragged.

Foucrault, the coroner, said one of the bodies was found on the tarmac near where the plane's tail broke off when it slammed into the runway. The other was found on the left side of the plane about 30 feet away from where the jetliner came to rest after it skidded down the runway. Foucrault said an autopsy he expects to be completed by Monday will involve determining whether the second girl's death was caused by injuries suffered in the crash or "a secondary incident."

He said he did not get a close enough look at the victims on Saturday to know whether they had external injuries.

The flight originated in Shanghai, China, stopped over in Seoul, South Korea, before making the nearly 11-hour trip to San Francisco. The South Korea-based airline said four South Korean pilots were on board, three of whom were described as "skilled." Asiana airlines said late Sunday that the pilot in control of the plane had very little experience flying that type of plane and was landing one for the first time.

On audio recordings from the air traffic tower, controllers told all pilots in other planes to stay put after the crash. "All runways are closed. Airport is closed. San Francisco tower," said one controller.

At one point, the pilot of a United Airlines plane radioed.

"We see people ... that need immediate attention," the pilot said. "They are alive and walking around."

"Think you said people are just walking outside the airplane right now?" the controller replied.

"Yes," answered the pilot of United Flight 885. "Some people, it looks like, are struggling."

When the plane hit the ground, oxygen masks dropped down, said Xu Da, a product manager at an Internet company in Hangzhou, China, who was sitting with his wife and teenage son near the back of the plane. He stood up and saw sparking _ perhaps from exposed electrical wires _ and a gaping hole through the back of the plane where its galley was torn away along with the tail.

Xu and his family escaped through the opening. Once on the tarmac, they watched the plane catch fire, and firefighters hose it down.

In the chaotic moments after the landing, when baggage was tumbling from the overhead bins onto passengers and people all around her were screaming, Wen Zhang grabbed her 4-year-old son, who hit the seat in front of him and broke his leg.

Spotting a hole at the back of the jumbo jet where the bathroom had been, she carried her boy to safety.

"I had no time to be scared," she said.

Nearby, people who escaped were dousing themselves with water from the bay, possibly to cool burn injuries, authorities said.

By the time the flames were out, much of the top of the fuselage had burned away. Inside The tail section was gone, with pieces of it scattered across the beginning of the runway. One engine was gone, and the other was no longer on the wing.

Lowy reported from Washington, D.C. Associated Press writers Terry Collins, Terry Chea, Lisa Leff and Sudhin Thanawala in San Francisco, David Koenig in Dallas, Louise Watt in Beijing and Hyung-jin Kim in Seoul contributed to this report.