Deaths were recorded in the Punjab, Sindh, Khyber Pakhtunkhwa, Balochistan and Azad Kashmir regions, The News International reported Sunday. The deluges brought high waters to Karachi Saturday, killing at least 14 people in the port city and bringing it to a standstill by inundating roads and bridges, the Pakistani newspaper said.
The storms also caused widespread power outages in Karachi.
The at least 13 fatalities in Khyber Pakhtunkhwa included five children, the News said.
At least four people died and a fifth was injured when a roof collapsed under heavy rain in Khuchay Kalay area of Kurram Agency.
Three people were killed when their car was swept away by flood waters in Bagh district in Azad Kashmir, the News said a private news channel reported.
At least five others were killed when the roof of their house collapsed in Hub, Balochistan.
An emergency was declared after in Jhal Magsi district of Balochistan after flood waters breached an embankment.
Lifeboats are being used to transport people out of the affected areas to safer places, the News said.