
A rescue vessel practises saving people during a maritime search and rescue drill in the Pearl River estuary, south China's Guangdong Province, on Oct 27, 2022. Photo:Xinhua

Rescue vessels take part in a maritime search and rescue drill in the Pearl River estuary, south China's Guangdong Province, on Oct 27, 2022. Photo:Xinhua

Rescue vessels sail during a maritime search and rescue drill in the Pearl River estuary, south China's Guangdong Province, on Oct 27, 2022. Photo:Xinhua

A helicopter practises saving a person during a maritime search and rescue drill in the Pearl River estuary, south China's Guangdong Province, on Oct 27, 2022. Photo:Xinhua

This aerial photo taken on Oct 27, 2022 shows rescue vessels putting out fire during a maritime search and rescue drill in the Pearl River estuary, south China's Guangdong Province. Photo:Xinhua

This aerial photo taken on Oct 27, 2022 shows a helicopter practising saving a person during a maritime search and rescue drill in the Pearl River estuary, south China's Guangdong Province. Photo:Xinhua

A helicopter practises saving people during a maritime search and rescue drill in the Pearl River estuary, south China's Guangdong Province, on Oct 27, 2022. Photo:Xinhua

Fire is seen after a simulated collision between an oil tanker and a passenger ship during a maritime search and rescue drill in the Pearl River estuary, south China's Guangdong Province, on Oct 27, 2022. Photo:Xinhua

Rescue vessels and a helicopter take part in a maritime search and rescue drill in the Pearl River estuary, south China's Guangdong Province, on Oct 27, 2022. Photo:Xinhua