Archaeological staff members work at the tomb complex in Zhengzhou, capital of Central China's Henan province, April 20, 2017. [Photo/Chinanews.com]

A tomb complex of Eastern Zhou Dynasty (770-256 BC) was discovered at a construction site in Zhengzhou, capital of Central China's Henan province, April 20, 2017.

More than 10 skeletons in various positions were unearthed from 30 tombs. The archaeological excavation work is still undergoing.