Mediterranean storm Daniel caused devastating floods in Libya that broke dams and swept away entire neighborhoods in multiple coastal towns in the east of the North African nation. As many as 10,000 people were feared dead, said Red Cross and Red Crescent officials at a U.N. briefing from Tunisia. Via Associated Press:

The destruction appeared greatest in Derna, a city formerly held by Islamic extremists in the chaos that has gripped Libya for more than a decade and left it with crumbling and inadequate infrastructure. Libya remains divided between two rival administrations, one in the east and one in the west, each backed by militias and foreign governments.

The confirmed death toll from the weekend flooding stood at 61 as of late Monday, according to health authorities. But the tally did not include Derna, which had become inaccessible, and many of the thousands missing there were believed carried away by waters after two upstream dams burst.

Video by residents of the city posted online showed major devastation. Entire residential areas were erased along a river that runs down from the mountains through the city center. Multistory apartment buildings that once stood well back from the river were partially collapsed into the mud.