At least 23 people have been confirmed dead after flash floods swept through Afghanistan's eastern Nuristan province, the country's National Disaster Management Authority said on Tuesday.According to preliminary reports from the authorities, 15 bodies have been recovered, around 80 people were wounded and about 100 others remain missing. Search and rescue operations are continuing in Parun, the provincial capital, and surrounding areas.Deadly flooding has repeatedly struck Afghanistan in recent years, causing significant casualties and widespread damage to homes, infrastructure and agricultural land.