Federation says it fears death toll of nearly 600 will continue to rise as rescuers reach cut-off areasNepal-Tibet flash flood – latest updatesVisual guide: how the deadly flooding unfoldedTell us: have you been affected by the flash floods?The Red Cross has said at least 93,000 people may have been affected by Wednesday’s flash floods on the Nepal-Tibet border, which have killed nearly 600 people, left another 1,900 missing, and triggered a huge rescue operation that is being hampered by fe