Thousands of Pakistani rescuers battled rain and knee-deep mud Sunday, digging homes out from under massive boulders in a desperate search for survivors after flash floods killed at least

Entire villages have been wiped out and mass burials are taking place as flash floods wreak havoc across Pakistan, leaving at least 340 people dead and hundreds missing, news agency AFP reported. Officials and eyewitnesses described scenes of large-scale devastation,

Pakistan is expected to face increased rainfall this month, raising the risk of further flooding and landslides, according to government officials.