In this drone photo, a drone carrying seafood takes off from Nan'ao Shuangyong Pier in Shenzhen, south China's Guangdong Province, Feb. 5, 2024.

A drone delivery route for seafood has been put into operation between Nan'ao Shuangyong Pier in the east of Shenzhen and the city's Longgang District.

The drones take off with up to 20 kilograms load and the seafood will be delivered to local couriers and finally reach the customers. (Xinhua/Mao Siqian)

A fisherman transports newly-caught crabs in Nan'ao Shuangyong Pier in Shenzhen, south China's Guangdong Province, Feb. 5, 2024.

A drone delivery route for seafood has been put into operation between Nan'ao Shuangyong Pier in the east of Shenzhen and the city's Longgang District.

The drones take off with up to 20 kilograms load and the seafood will be delivered to local couriers and finally reach the customers. (Xinhua/Mao Siqian)

Seafood store workers transport newly-caught crabs in Nan'ao Shuangyong Pier in Shenzhen, south China's Guangdong Province, Feb. 5, 2024.

A drone delivery route for seafood has been put into operation between Nan'ao Shuangyong Pier in the east of Shenzhen and the city's Longgang District.

The drones take off with up to 20 kilograms load and the seafood will be delivered to local couriers and finally reach the customers. (Xinhua/Mao Siqian)

A drone carrying seafood takes off from Nan'ao Shuangyong Pier in Shenzhen, south China's Guangdong Province, Feb. 5, 2024.

A drone delivery route for seafood has been put into operation between Nan'ao Shuangyong Pier in the east of Shenzhen and the city's Longgang District.

The drones take off with up to 20 kilograms load and the seafood will be delivered to local couriers and finally reach the customers. (Xinhua/Mao Siqian)

A courier of SF Express delivers seafood to a customer's home in Longgang District of Shenzhen, south China's Guangdong Province, Feb. 5, 2024.

A drone delivery route for seafood has been put into operation between Nan'ao Shuangyong Pier in the east of Shenzhen and the city's Longgang District.

The drones take off with up to 20 kilograms load and the seafood will be delivered to local couriers and finally reach the customers. (Xinhua/Mao Siqian)