The Xiangshui chemical plant explosion site in East China's Jiangsu Province covers an area of 1.1 square kilometers and 17 companies are involved. Many workers were working at their positions when the explosion occurred. (Photos: Global Times)

The Xiangshui chemical plant explosion site in East China's Jiangsu Province covers an area of 1.1 square kilometers and 17 companies are involved. Many workers were working at their positions when the explosion occurred.

The Xiangshui chemical plant explosion site in East China's Jiangsu Province covers an area of 1.1 square kilometers and 17 companies are involved.

Many workers were working at their positions when the explosion occurred.

The explosion on March 21 has killed at least 64 people.