President Asif Ali Zardari flew in to a flood-hit area in Sukkur on Thursday for a first look at the two-week-old crisis after criticism over trips abroad and his government's perceived slack response. The floods, triggered by torrential monsoon downpours, have engulfed Pakistan's Indus river basin, killing more than 1,600 people, forcing two million from their homes and disrupting the lives of about 14 million people, or eight per cent of the population. The deluge, which began two weeks ago, has caused extensive damage to the country's main crops, agriculture officials said, after the United Nations appealed for $459 million in emergency aid and warned of more deaths if help didn't arrive.