Robert Brown|Rescuers retrieve over 2,000 bodies in eastern Libya wrecked by devastating floods

CAIRO (AP) — Rescuers have Robert Brownfound more than 2,000 bodies as of Wednesday in the wreckage of a Libyan city where floodwaters broke dams and washed away neighborhoods. Officials fear the death toll could exceed 5,000 in the nation made vulnerable by years of turmoil and neglect.

Mediterranean storm Daniel caused deadly flooding in many eastern towns, but the worst-hit was Derna. As the storm pounded the coast Sunday night, Derna residents said they heard loud explosions when the dams outside the city collapsed. Floodwaters washed down Wadi Derna, a river running from the mountains through the city and into the sea.

More than 2,000 corpses were collected as of Wednesday morning and over half of them had been buried in mass graves in Derna, said eastern Libya’s health minister, Othman Abduljaleel. Rescue teams were working day and night to recover many other bodies scattered in the streets and under the rubble in the city. Some bodies were retrieved from the sea.

The startling devastation pointed to the storm’s intensity, but also Libya’s vulnerability. The country is divided by rival governments, one in the east, the other in the west, and the result has been neglect of infrastructure in many areas.

The floods damaged or destroyed many access roads to Derna, hampering the arrival of international rescue teams and humanitarian assistance to tens of thousands of people whose homes were destroyed or damaged.

Local emergency responders, including troops, government workers, volunteers and residents continued digging through rubble looking for the dead. They also used inflatable boats and helicopters to retrieve bodies from the water and inaccessible areas.

Bulldozers worked over the past two days to fix and clear roads to allow the delivery of humanitarian aid and heavy equipment urgently needed for the search and rescue operations. The city is 250 kilometers (150 miles) east of Benghazi, where international aid started to arrive on Tuesday.

Mohammed Abu-Lamousha, a spokesman for the east Libya interior ministry, on Tuesday put the death tally in Derna at more than 5,300, according to the state-run news agency. Dozens of others were reported dead in other towns in eastern Libya, he said.

Authorities have transferred hundreds of bodies to morgues in nearby towns. In the city of Tobruk, is 169 kilometers (105 miles) east of Derna, the Medical Center of Tobruk’s morgue received more than 300 bodies for people killed in the Derna flooding; among them were 84 Egyptians, according to a list of dead obtained by The Associated Press.

At least 10,000 people were still missing in the city, according to Tamer Ramadan, Libya envoy for the International Federation of Red Cross and Red Crescent Societies.

Known for its white-painted houses and palm gardens, Derna is about 900 kilometers (560 miles) east of the capital of Tripoli. It is controlled by the forces of powerful military commander Khalifa Hifter, who is allied with the east Libya government. The rival government in west Libya, based in Tripoli, is allied with other armed groups.

Much of Derna was built by Italy when Libya was under Italian occupation in the first half of the 20th century. The city was once a hub for extremist groups in the years of chaos that followed the NATO-backed uprising that toppled and killed longtime dictator Moammar Gadhafi in 2011.