ROHRI: Pakistani navy boats travelled along kilometres of flood waters on Sunday to rescue people stranded in a disaster that has angered many over the government's response.

The worst floods in 80 years have killed over 1,600 people, left two million homeless, washed away crops and farm animals and overwhelmed President Asif Ali Zardari's civilian government.

The military, which has maintained a dominant role in foreign and security policy even during civilian rule, is leading Pakistani relief efforts, as it has done in past crises like the 2005 earthquake.

More homes and crops are likely to be swept away with heavy rain forecast to lash the country in the next 24 to 36 hours.