To Cambodia, where the future of the Mekong River is being discussed at a two-day summit. Chinese Premier Li Keqiang will attend the summit on Wednesday and hold talks with senior officials there. Our correspondent Martin Lowe has more details.

Setting the agenda for a full summit to follow, senior officials of the Lancang-Mekong Co-operation Organization meet in Cambodia. Sustainability and peace are the twin themes at this meeting for those trying to manage Southeast Asia's most controversial waterway. Governments build dams on the river to harness hydroelectric power. Environmentalists claim these can affect fish stocks on which millions depend. Trying to satisfy everyone is a difficult task.

SOK SY PHANNA SENIOR OFFICIAL OF CAMBODIAN GOVERNMENT "The agenda will look at the progress of the Mekong Lancang river up to now and projecting what we intend to do in the next five years. We have a Five Year Plan which is one of the key outcome documents for the summit, and combined with the Phnom Penh Declaration, it's enough to give a good picture of where the Mekong Lancang has come and where we intend to go forward in the next five years. "

MARTIN LOWE MINISTRY OF FOREIGN AFFAIRS, PHNOM PENH "This is about more than just the Mekong River. Though the future of the waterway is a priority at these talks, this is also a geopolitical organization holding meetings about trade, investment and economic development in the region."

The Lancang-Mekong group was established in 2015. It's the only body to include all six countries the river flows through; China, Myanmar, Thailand, Laos, Cambodia and Vietnam, and it's already making progress, with agreements reached and long-term plans in formation. Martin Lowe, CGTN, Phnom Penh.