Race to get aid into Nepal and Tibet amid warnings flood lake could burst

Flash floods have killed at least 469 people while homes and infrastructure have been swept away Nepal-Tibet flash flood - latest updatesWhat caused the flash flood in Nepal and Tibet?The international community was scrambling to get aid into flood-stricken parts of Nepal and Tibet on Thursday as authorities warned that a lake formed at the site where the deadly torrents occurred was rising and at risk of bursting.The catastrophic flash floods that hit Nepal and Tibet on Wednesday, thundering do...