Over 350 people have died in a 72 hour period in Pakistan due to monsoon flooding, Pakistan's National Disaster Management Authority reported, bringing the total number of people killed to over 650 since June 26.

Anguished Pakistanis are searching remote areas for bodies swept away by weekend flash floods as the death toll has reached 277.

Pakistan has received higher-than-normal monsoon rainfall this year, triggering floods and mudslides that have killed more than 540 people since June 26.