Catastrophic flooding in Libya this month has killed at least 10,000 people and displaced more than 30,000.: Catastrophic flooding in Libya this month has killed at least 10,000 people and displaced more than 30,000. Catastrophic flooding earlier this week in Libya killed at least 10,000 people, with more than 30,000 displaced, after Storm Daniel pummeled the coast and two dams broke in quick succession. Nearly a quarter of Derna, a coastal city in the eastern corner of Libya, was destroyed in the flooding, with entire blocks of buildings now missing and washed out to sea.