At least 11,300 people have died and another 10,100 are missing from the coastal city of Derna one week after Storm Daniel hit northeastern Libya, the UN Office for the Coordination of Humanitarian Affairs reported.
An estimated 170 people have been killed as a result of the flooding elsewhere in the country, and more than 40,000 people have been displaced, the UN report said, citing the latest data from International Organisaton for Migration.
Figures are expected to rise as search-and-rescue efforts continue to look for survivors.
Libya's official news agency reported that floods completely destroyed at least 891 buildings in Derna, according to figures from a team assigned by the Libyan National Unity Government.
An additional 211 buildings were partially damaged and 398 others were submerged in mud, the report added, leaving a total of a quarter buildings damaged in the flood-ravaged city.
Hijackers being seated next to some of the scores of passengers taken hostage after insurgents took control of a train in southwest Pakistan, has complicating rescue efforts, security sources said on Wednesday.
The captain of a ship, who has been arrested in connection with a crash into a US flagged tanker off the coast of England is a Russian national, the German company which owns the vessel said on Wednesday.
A Russian missile attack on the central Ukrainian city of Kryvyi Rih killed a 47-year-old woman and wounded at least nine other people, Dnipropetrovsk regional governor Serhiy Lysak said on Wednesday.
Yemen's Houthis said on Tuesday they would resume attacks on Israeli ships passing through the Red and Arabian seas, the Bab al-Mandab Strait and the Gulf of Aden, ending a period of relative calm starting in January with the Gaza ceasefire.
US President Donald Trump's increased tariffs on all US steel and aluminum imports took effect on Wednesday, stepping up a campaign to reorder global trade norms in favour of the US that drew swift retaliation from Europe.