China starts building world's largest dam, fuelling fears in India

The dam is on a Tibetan river that flows into India and Bangladesh, and could affect millions downstream.

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Chinese Premier Li Qiang presided over a ceremony marking the start of construction on the Yarlung Tsangpo river on Saturday, according to local media.

The river flows through the Tibetan plateau. The project has attracted criticism for its potential impact on millions of Indians and Bangladeshis living downriver, as well as the surrounding environment and local Tibetans.

Beijing says the scheme, costing an estimated 1.2tn yuan ($167bn; £125bn), will prioritise ecological protection and boost local prosperity.

When completed, the project - also known as the Motuo Hydropower Station - will overtake the Three Gorges dam as the world's largest, and could generate three times more energy.