The prime minister of Libyan’s eastern administration says authorities have divided the flood-stricken city of Derna into four sections to create buffers in case of disease outbreaks.

Officials are warning that a disease outbreak in Libya’s northeast, where floods have killed thousands, could create “a second devastating crisis” as adults and children fell ill from contaminated water.

The disastrous flooding that killed more than 11,000 people has fostered national solidarity among Libyans, long governed by opposing powers.

Libya’s top prosecutor says he has opened an investigation into the collapse of two dams that caused a devastating flood in a coastal city.

FILE - In this Dec. 22, 1988, file photo police and investigators look at what remains of the nose of Pan Am 103 in a field in Lockerbie, Scotland. The Justice Department expects to unseal charges in the coming days in connection with the 1988 bombing of a Pan Am jet that exploded over Lockerbie, Scotland, killing 270 people, according to a person familiar with the case. (AP Photo/Martin Cleaver, File)WASHINGTON – The Justice Department plans to unseal new charges in the coming days in connection with the 1988 bombing of a Pan Am jet that exploded over Lockerbie, Scotland, killing 270 people, according to a person familiar with the case. The New York-bound flight exploded over Lockerbie less than an hour after takeoff from London on Dec. 21, 1988. One man — former Libyan intelligence official Abdel Baset al-Megrahi — was convicted in the Netherlands of the bombing, and a second Libyan suspect was acquitted of all charges.

FILE - In this Dec. 22, 1988, file photo police and investigators look at what remains of the nose of Pan Am 103 in a field in Lockerbie, Scotland. The Justice Department expects to unseal charges in the coming days in connection with the 1988 bombing of a Pan Am jet that exploded over Lockerbie, Scotland, killing 270 people, according to a person familiar with the case. (AP Photo/Martin Cleaver, File)WASHINGTON – The Justice Department plans to unseal new charges in the coming days in connection with the 1988 bombing of a Pan Am jet that exploded over Lockerbie, Scotland, killing 270 people, according to a person familiar with the case. We will not rest until all those responsible are brought to justice,” Barr said at a 1991 news conference announcing the charges. The New York-bound flight exploded over Lockerbie less than an hour after takeoff from London on Dec. 21, 1988.