Shanghai Maritime Search and Rescue Center and Pudong Maritime Bureau organized the drill. During its course, three cargo containers 'fell' off a ship while it was leaving the dock.
The containers fell into the water near the dock and one of them was containing 'dangerous' goods.
The rescue team began its operations which included controlling water traffic, positioning containers, underwater salvaging, and dangerous goods handling.
In total, ten rescue boats and 76 staff members participated in the drill.
The drill's aim was to improve the handling of dangerous situations by the relevant maritime authorities.