Derna, Libya
In September 2023, a catastrophic (a sudden great damage or suffering) flood caused by dam collapses during Storm Daniel which resulted in around 30 million cubic metres of water being released in the city, wiped out about a quarter of the city, resulting in atleast 11,300 deaths and as per Libyan officials more then 10,000 others are injured, and missing residents while the UN aid agency OCHA said the figure was at least 5,000.