Drone footage released by Chinese authorities shows a landslide-dammed lake formed by glacier debris on the border between Nepal and the autonomous Chinese region of Xizang.⁣ ⁣ Following a deadly glacier collapse, the lake overflowed on Friday – triggering fresh alarms downstream and catastrophic flooding which has killed almost 500 people and left nearly 1,000 missing across Nepal and Xizang.⁣ ⁣ #Nepal #Tibet #Floods #Glacier #Landslide #NaturalDisaster