Disaster agency says the majority of deaths happened in Khyber Pakhtunkhwa in northwest Pakistan.The death toll from heavy monsoon rains that have triggered landslides and flash floods across northern Pakistan has risen to at least 164 people, according to the disaster authority.Most of the deaths, 150, were recorded in the mountainous Khyber Pakhtunkhwa province in northwestern Pakistan, including 78 people who died in the flood-hit Buner district, the National Disaster Management Authority said on Friday.Later, a helicopter on a rescue mission in the flood-hit province crashed due to the bad weather, killing the five crew members, the government said.Reporting from Islamabad, Al Jazeera’s Kamal Hyder said the helicopter was a military aircraft.“This was a Pakistani military helicopter that was involved in a rescue operation. Helicopters are being used to help people in areas that are hard to access,” he said.Hundreds evacuatedDozens of people were injured as the deluge destroyed homes in villages in Buner, where authorities declared a state of emergency on Friday.Rescuers evacuated 1,300 stranded tourists from the mountainous Mansehra district, which was hit by landslides on Thursday. At least 35 people were reported missing in these areas, according to local officials.Nine more people were killed in Pakistan-administered Kashmir while five died in the northern Gilgit-Baltistan region, authorities said.The Meteorological Department issued a heavy rain alert for the northwest, urging people to avoid “unnecessary exposure to vulnerable areas”.Floods in India-adminis …