Rescuers are burying victims in ?three mass graves? due to a lack of time and space, a local emergency worker reported
The death toll in the eastern Libyan port city of Derna following catastrophic flash flooding could reach 20,000, the local mayor told TV outlet Al Arabiya on Wednesday.
Abdulmenam al-Ghaithi said he believes between 18,000 and 20,000 people may have died, given the extent of the destruction caused by floods in a number of districts. The city's population prior to the disaster was around 125,000.
On Tuesday, authorities from the divided country's eastern government estimated that at least 5,300 people had already died, with an estimated 10,000 missing. The fierce Mediterranean storm collapsed two dams on Sunday and swept entire neighborhoods into the sea.
Hichem Abu Chkiouat, the minister of civil aviation in the administration that runs eastern Libya, told Reuters on Wednesday that more than 5,300 had been confirmed dead so far, adding that the number was likely to double.
"[The] sea is constantly dumping dozens of bodies," Chkiouat told Reuters on Wednesday.
"I am not exaggerating when I say that 25% of the city has disappeared. Many, many buildings have collapsed," he said.
Spokesperson for the Interior Ministry, Lieutenant Tarek al-Kharraz, told the AFP news agency that 3,190 people had already been buried. At least 400 of those killed were foreigners, mostly from Sudan and Egypt.
Rescuers are burying the victims in "three mass graves" because of a lack of time and space to bury them individually, said Osama Ali, a spokesman for Libya's Ambulance and Emergency Center, according to a Financial Times report.
Teams from Egypt, Türkey, and Qatar have arrived in the North African nation to participate in ongoing search-and-rescue operations.
Since Muammar Gaddafi's assassination in 2011, Libya has been divided between two competing authorities, with the internationally recognized Government of National Unity based in the western city of Tripoli and the parallel administration in the east, where Derna is located.
In a statement on Wednesday, United Nations High Commissioner for Human Rights Volker Turk urged the political factions to "act collectively in ensuring access to relief."
The UN World Food Program announced the delivery of its first shipment of food aid to Libya, where it already assists more than 52,000 people, including internally displaced people, returnees, and migrants in urban areas.
On Tuesday, UN Emergency Relief Coordinator Martin Griffiths said a fund of $10 million had been set aside to assist those impacted by floods.