Sifeng Wu was 13 when she vanished from a Lyndhurst, New Jersey hotel in the early morning of February 1, 2011. Visiting the U.S. as part of a tour group, she and a 15-year-old companion, Jiaqian Liu, left their Quality Inn room at about 1:20 a.m. without passports but with backpacks and personal items, a fact investigators noted as consistent with a planned departure.

One of the girls later contacted family in China to say she was safe, and Jiaqian was located and found safe in August 2012. Sifeng, described as 5 feet 3 inches, about 115 pounds, with black hair and brown eyes, has not been found and there has been no new public information about her whereabouts since her disappearance.

If anyone has information about Sifeng’s movements in February 2011 or remembers seeing these girls in the New York–New Jersey area that night, please come forward.