Thousands of people in Northeast Cambodia have been displaced because of the controversial Lower Sesan 2 dam project, part of China's One Belt, One Road global initiative.

Non-governmental organisations (NGOs) have voiced concerns, but local officials insist their fears are unfounded.

The remote areas affected had been inaccessible to foreign media, but a BBC team managed to speak to the villagers holding out in their flooded villages.

Reporter: Nga Pham

Video journalist: Efrem Gebreab