Pakistani authorities are defending their response to flash floods that killed more than 200 people in a single northwestern district this week.

Pakistani rescuers dug homes out from under massive boulders on Sunday as they searched for survivors of flash floods that killed at least 344 people, with more than 150 still missing.More than 150 people are missing in Buner,

By Sunday morning, the death toll from the rains across the mountainous north of Pakistan had risen to at least 337 people, with most killed in flash floods, according to the National Disaster Management Authority. In Buner, a three-and-a-half-hour drive from the capital Islamabad, 207 lives were lost and others are still missing.