A deadly flash flood near Nepal's border with Tibet on Wednesday may have been triggered when the lower part of a glacier broke off and crashed on to the valley floor hundreds of metres below, experts said citing satellite imagery from Planet Labs.It was not clear what caused the glacier to collapse, but Nepali officials have pointed to an earthquake in the region minutes earlier as a possibility.Authorities on both sides fear the total number of casualties will be far higher than the nearly 100 bodies so far recovered. More than 300 travellers were missing, Nepal's government has said.Befo…READ FULL ARTICLE