Pakistan relief operations under pressure
Relief operations in Pakistan are coming under ever greater pressure as people try to move out of the path of floodwaters in the country's south.
Three weeks after the devastating monsoon, waters are continuing to rise in the southern province of Sindh and parts of Punjab.
One-fifth of the country's land area has now been submerged. More aid has been pledged but on the ground many people remain in desperate need.
Chris Morris reports.
20 Aug 2010