Goma - Drenching rain punctuated by frightening bursts of thunder and forked lightning add to the misery of some of the 280 000 refugees from Democratic Republic of Congo’s eastern rebellion, whose plight is highlighted by a visit from the UN humanitarian chief.
A planned UN food distribution could be delayed by Wednesday's tropical thunderstorm.
The UN's Baroness Valerie Amos, on the third day of a DRC trip, says relief efforts are hampered by a lack of funding. She appeals for contributions. The UN says aid organisations need $791m and so far have received only $341m.
In the storm, makeshift huts of twigs and leaves became swamps at an impromptu camp outside Goma, the provincial capital. Mutinous soldiers started the rebellion in April and have taken control of large swathes of eastern DRC.