Mud barrier is Pakistani city's last line of defence
In southern Pakistan tens of thousands of people are fleeing a threatened flood-surge, three weeks after heavy monsoon rains first hit the country.
Sindh is now being described as the country's worst hit province, with officials saying at least 200,000 residents have fled in the last 24 hours.
In Shahdadkot, the BBC's Jill McGivering says residents are leaving en masse to try to reach safe ground.
A makeshift 4ft mud barrier, built by the army and volunteers, is the city's last line of defence from the flood waters.