<p><br /> Pakistani flood survivors, already short on food and water, began the fasting month of Ramadan.<br /> </p><p><br /> The United Nations has warned that the disaster was far from over, saying a dam in the Sindh province could still burst in the next few days.<br /> </p><p><br /> A spokesman said UN offcials estimated that up to a quarter of the country is or has been affected by the floods.<br /> </p><p><br /> Pakistani Prime Minister Yousuf Raza Gilani flew to the southwestern Baluchistan province to see flood-hit areas.<br /> </p><p><br /> He said: "No one should feel that the relief provided by donors might be misused. Of this I want to assure you. Whatever you give, we will give an account of every single penny."<br /> </p><p><br /> An American Navy ship with helicopters and 1,000 marines reached Pakistan's southern coast to boost relief efforts.<br /> </p>
