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

#BREAKING Many feared trapped after a factory collapses in Wenling City, Zhejiang Province pic.twitter.com/aviySAazNe — CCTVNEWS (@cctvnews) July 4, 2015

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.

14 people are trapped under the debris after a 4-storey factory collapsed in Wenling, Zhejiang, 37 have been rescued pic.twitter.com/1m2qvebCXz — CCTVNEWS (@cctvnews) July 4, 2015

#UPDATE 42 people rescued, 9 others still unaccounted for after a factory collapsed in Wenling, Zhejiang — CCTVNEWS (@cctvnews) July 4, 2015

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.