Dramatic satellite images show devastation in Libya

STORY: The images showed the city's neighborhoods, highways, dams and port facilities in ruins.

A torrent unleashed by a powerful storm burst dams on Sunday night and hurtled down a seasonal riverbed that bisects the eastern city of Derna, washing multi-story buildings into the sea with sleeping families inside.

Confirmed death tolls given by officials have varied. All are in the thousands, with thousands more on lists of the missing. Derna Mayor Abdulmenam al-Ghaithi said deaths in the city could already reach 18,000-20,000, based on the extent of the damage.