Libya is racing to bury its dead as bodies pile up in the streets of Derna, the northern coastal city devastated by flooding after a torrential downpour smashed through two dams, washing homes into the sea.

The death toll rose to over 6,000 people as of Wednesday morning local time, according to Saadeddin Abdul Wakil, health ministry undersecretary of the Unity Government in Tripoli, one of two rival governments operating in the country.

Morgues are full in hospitals that remain out of service despite the desperate need to treat survivors of the disaster, according to staff.

Around 10,000 more are missing, potentially either swept out to sea or buried beneath rubble that’s strewn throughout the city once home to over 100,000 people, Libyan authorities said.

More than 30,000 people have been displaced by the flooding in Derna, the United Nations’ International Organization for Migration (IOM) in Libya said Wednesday.

The significant damage to infrastructure in the region has made some stricken regions inaccessible to humanitarian groups. Only two out of the seven entry points to Derna now available.