Passengers wait at San Francisco International Airport, the United States, July 6, 2013. The South Korean consulate has confirmed that the pair killed in a crash landing of an Asiana Airlines plane at San Francisco airport were women holding Chinese passports, the Chinese Consulate General in San Francisco told Xinhua Sunday. Photo: Xinhua

Passengers wait at San Francisco International Airport, the United States, July 6, 2013. The South Korean consulate has confirmed that the pair killed in a crash landing of an Asiana Airlines plane at San Francisco airport were women holding Chinese passports, the Chinese Consulate General in San Francisco told Xinhua Sunday. Photo: Xinhua

A passenger covering her face leaves the room where passengers from the crash-landed Asiana Airlines flight rest in at San Francisco International Airport, the United States, July 6, 2013. The South Korean consulate has confirmed that the pair killed in a crash landing of an Asiana Airlines plane at San Francisco airport were women holding Chinese passports, the Chinese Consulate General in San Francisco told Xinhua Sunday. Photo: Xinhua

Policemen guard the room where passengers from the crash-landed Asiana Airlines flight rest in at San Francisco International Airport, the United States, July 6, 2013. The South Korean consulate has confirmed that the pair killed in a crash landing of an Asiana Airlines plane at San Francisco airport were women holding Chinese passports, the Chinese Consulate General in San Francisco told Xinhua Sunday. Photo: Xinhua