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

Rescuers were racing against time to find survivors after flash floods killed at least 337 people in Pakistan 's Khyber Pakhtunkhwa province. The northwestern province was struck by cloudbursts and torrential monsoon downpours on Friday, triggering flash floods and landslides in the mountainous Buner district.

Officials say rescuers have recovered dozens more bodies from the rubble of collapsed homes in a northwestern district of Pakistan, bringing the death toll to at least 274, as authorities defended their response to the flooding and said they did not need any foreign help at this point.