Rescuers cut through a filtration tank filled with dense fish feces to reach four workers who fell into the sludgy dung on May 11 while cleaning the 5.49m tank at a farm in western Massachusetts, USA.

• 美国麻萨诸塞州西部一处鱼塭的四名工人，五月十一日在进行清理工作时，不慎跌入五点四九公尺高、装满浓稠粪泥的鱼粪槽内，救难人员切开过滤槽才救出四人。