Flood warnings stretched across Australia’s east coast on Tuesday and tens of thousands of Sydney residents fled their homes overnight as torrential rains again pummelled the country’s largest city, causing flash floods.

Australia’s eastern rivers were already near capacity following record downpours in several parts of Queensland and New South Wales states over recent weeks, cutting off towns, and sweeping away farms, livestock and roads.

A man and a woman were found dead on Tuesday near an abandoned car in a stormwater canal in western Sydney, authorities said, while Queensland police confirmed the death of a man missing in floods since Feb. 27, taking the death tally to 20 since the deluge began. Most people were found dead either in flooded homes or in cars attempting to cross flooded roads.