Buner, Pakistan — Pakistan issued a flood alert Wednesday for some southern districts, warning of torrential rains, as rescue teams continued searching for missing people in the country's northwest, where severe floods killed hundreds over the past week.

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.