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A Chinese shoe factory in Wenling City collapsed on Saturday. Pictured, Bangladeshi rescuers work as Bangladeshi Army personel continue the second phase of the rescue operation using heavy equipment after an eight-storey building collapsed in Savar, on the outskirts of Dhaka, on April 30, 2013. MUNIR UZ ZAMAN/AFP/Getty Images

Nine people remain unaccounted for after a shoe factory in Eastern China collapsed on Saturday, according to China Central Television news.

The collapse occured around 4:00 p.m. local time, and there were at least 51 people working inside when it happened. So far, 42 people have been rescued, reports CCTV. The factory was located in the Wenling City in China's Zhejiang province.

According to the BBC, Wengling City is an important hub for the footwear industry. The tourism office told the BBC that one in five shoes originate from this coastal city.