Hong Kong (CNN) -- The two teen girls were close friends, each looking forward to a summer trip to California to improve their English. Ye Mengyuan excelled at the piano, just as she did in her academics. Wang Linjia enjoyed calligraphy and, according to local media, her work at the school's TV and radio stations. Classmates since junior high, the girls often ate lunch together at school, and few were surprised that they chose to sit together on the 10-hour flight that led to their deaths Saturday. Asiana Airlines Flight 214 had started in Shanghai, China, where the two girls boarded. Then, with a stop in Seoul, South Korea, the flight headed for San Francisco.
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NEW: Parents of the two girls killed arrive in San Francisco
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NEW: Asiana Airlines' CEO apologized to the parents during their layover in Seoul
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Ye Mengyuan and Wang Linjia, both 16, both died after the crash
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One of the girls killed may have been hit by emergency vehicle
Once they recover, they will be returning to @placeholder for the summer instead of coming to camp, he said.
A keen painter and calligrapher, @placeholder produced artwork that was said to hang on the wall of her father's office.