KABUL  - At least 145 people are missing and “presumed dead” after an avalanche hit a village in Afghanistan’s northeastern Bada-khshan province last week, the United Nations said Saturday. Afghan officials had earlier Saturday put the death toll from the March 4 series of avalanches in Badakhshan’s Shekay district at 56. The UN said an avalanche in the area claimed 50 lives and warned of severe flooding over coming weeks due to melting snow. Afghanistan’s harshest winter in 15 years has claimed scores of lives, with the avalanches taking the toll to more than 90 in Badakhshan alone, according to officials.