Is the climate crisis to blame? The city of Derna has been left devastated after heavy rains destroyed two dams. But some experts say there is more to the disaster than weather.
Libyan flood sweeps entire streets into sea

Glossary
Bisected - Divided into two parts.
Wadi - A valley or ravine that is dry unless there is exceptional rain. Used in some Arabic-speaking countries.
Cyclone - An area of low atmospheric pressure accompanied by strong winds.
Colonel Gaddafi - Muammar Gaddafi ruled Libya from 1969 until his assassination in 2011.
Tripoli - The capital city of Libya.
UN - United Nations. An intergovernmental organisation based in New York that aims to maintain international peace and security.
Infrastructure - The basic systems and services that a country needs to keep it going.
Hydrology - The study of water on the Earth.