The incessant rain, which caused flash floods, has affected 50,000 people in the worst-affected area -- Badin district, 300 kilometers (186 miles) east of Karachi, the officials said.

"It is an emergency-like situation in the province," Sindh government spokesman Salahuddin Haider told AFP.

Around 5,000 villages in Badin and nearby Thatta district were flooded, Haider said.

Hundreds of army personnel and civil administration officials were engaged in rescue operations in the low-lying areas, but rain was hampering relief operations, he said.

"We have sent 25 additional army boats and two hovercraft to the area. So far 30,000 people have been evacuated to safer places," Haider said.

Military planes Monday dropped some 1,000 packets of food in villages rendered inaccessible due to the rain and floods, he said.

Thirty-seven were reported killed on Saturday, and officials said Monday 13 more had died since then.

Heavy rains also lashed North West Frontier Province, bordering Afghanistan, where three people died from electrocution and after roofs collapsed on them, officials said.

TERRA.WIRE