Chinese Premier Li Keqiang attended the third Lancang-Mekong Cooperation (LMC) leaders' meeting in Beijing that started Monday via video link. 

Aerial view of the Lancang River in southwest China's Yunnan Province. /VCG

Initiated by China in 2014, the LMC consists of six countries, namely China, Cambodia, Myanmar, Laos, Thailand and Vietnam.

The Lancang River originates on the Qinghai-Tibet Plateau in southwest China. It is called the Mekong River as it flows through the other five countries before emptying into the sea.