GENEVA, Sept 19 (Reuters) - A U.N. humanitarian office report said on Tuesday that some 400 migrants were killed in the floods that hit eastern Libya last week, citing hospital reports.

       The report quoted the U.N. health agency, the World Health Organization, as saying that 4,000 deaths had so far been reported in Libya by hospitals, including 400 migrants.

       Thousands of African and Middle Eastern migrants are temporarily based in Libya and many make the perilous Mediterranean crossing each year to flee poverty and conflict.

       The International Organization for Migration had previously said that over 100,000 migrants lived in flood-hit areas, including more than 8,000 in the city of Derna. They are mostly from Chad, Egypt and Sudan, it said.

       Reporting by Emma Farge, Editing by William Maclean

       Our Standards: The Thomson Reuters Trust Principles.

       Acquire Licensing Rights , opens new tab