The 98th Mekong River joint patrol by China, Laos, Myanmar and Thailand concluded Friday, with three Chinese law-enforcement vessels returning home to port.
A total of 115 law enforcement officers from the four countries participated in the operation, with five vessels navigating 512 km of the river over a period of four days and three nights, according to the Yunnan provincial public security department.
The officers examined 25 vehicles, 39 people and 23.6 tonnes of cargo during the joint patrol.
The Mekong River, known as the Lancang River in China, is a vital waterway for cross-border shipping among China, Laos, Myanmar, Thailand, Cambodia and Vietnam.
China, Laos, Myanmar and Thailand have been carrying out joint patrols on the Mekong River for eight years.