Nepal flood devastation revealed in satellite imagery

New satellite imagery has revealed the scale of the devastation along Nepal's Trishuli River caused by Wednesday's deadly flash flood, triggered by a glacier collapse. Before-and-after images show how sections of the valley, where a torrent of floodwater and debris surged through, destroyed villages, bridges and hydroelectric power stations. Hundreds of people have been killed and thousands more are missing, Nepalese officials say. Among the worst-hit locations reviewed by BBC Verify was a key Nepal-Tibet border crossing, which was engulfed by a rush of floodwater and captured on camera. The satellite imagery from US-based intelligence firm Vantor, shows the site has been almost entirely washed away. Shocking CCTV footage showed the moment as the deluge of water swept over buildings as people tried to escape. Damage and mud can be seen more than 2.5km (1.5 miles) upstream, reaching 100m (330 ft) above the area it first hit. A few miles further south is the village of Timure, which has now largely disappeared. The walls of the valley at this point are steep, reaching up to 50m above the water line. The image shows most of the houses perched on this slope are now gone or covered in m