"Crystal Fish 2021" typhoon drill – Government vehicles broadcast warnings at low-lying areas to remind the public be prepared for emergency.

"Crystal Fish 2021" typhoon drill – Police vehicles broadcast warnings to the public about the need to evacuate.

"Crystal Fish 2021" typhoon drill – Officers of the public security authorities assist evacuation of people in need.

"Crystal Fish 2021" typhoon drill – Municipal Affairs Bureau personnel clear drains to mitigate flooding.