Pakistani officials predicted Sunday that many more thousands of dead would be found in earthquake-ravaged Kashmir (search) as heavy rains in the Himalayan region drenched homeless survivors in mud and misery.

The latest estimate of at least 40,000 deaths in Pakistan's portion of Kashmir alone would mean more than 54,000 people were killed when the magnitude-7.6 quake hit the mountains of northern Pakistan (search) and India (search). That represents a jump of 13,000 from the official count of known dead.

A spokesman for the prime minister of the region warned that the cold and wet could cause further deaths among the 2 million or so people believed to be homeless.

About a fifth of the villages in the quake zone remained cut off eight days after the tremor turned villages scattered across lush mountainsides into death traps, and the bad weather over Kashmir halted aid flights by helicopters.

Central government officials in Islamabad said early in the day that confirmed casualties totaled 39,422 dead and 65,038 injured for all of Pakistan, including more than 13,000 killed in North West Frontier Province (search). Some 1,350 deaths were reported in India's part of Kashmir, for a total of just under 41,000.

But a spokesman for the state government chief in the Pakistani portion of Kashmir, which suffered the worst quake damage, said later that officials believed the death toll would rise rapidly as teams search more debris.

"The death toll is not less than 40,000" in just Pakistani Kashmir, said Abdul Khaliq Wasi, a spokesman for Sikandar Hayat Khan (search). He stressed that number was only "a closest estimate" and did not reflect the number of bodies recovered.

Khan, the Kashmiri prime minister, gave an even worse prediction to Pakistan's Geo television.

"Some people fear that the death toll could be 100,000 and they may be right," he said.

A precise death toll will be difficult to determine, because many bodies are buried under collapsed buildings and landslides.

"The United Nations is still operating on the government's official numbers," said Andrew MacLeod, Humanitarian Affairs officer with the U.N. Coordination and Assessment Team. "There are regions that still have not been reached, and the death toll is not final."

There was confusion about reports of soldiers rescuing a young girl from the rubble of her home Sunday.

The army spokesman, Maj. Gen. Shaukat Sultan, said a polio-stricken girl was pulled from her flattened home in a village near Balakot. But army Maj. Majid Jahangir in Balakot said the girl, described as 10 or 11, only had been unable to walk and was carried from the village by soldiers.

Maj. Gen. Farooq Ahmed Khan, the Pakistani relief commissioner, voiced fears about the chill downpours that were making conditions even more miserable for quake survivors forced to live in the open.

"There are bound to be casualties because of bad weather. How much? I don't know," Farooq Ahmed Khan said at a news conference.

He said 29,000 tents and 118,000 blankets had been distributed in the quake zone, but he estimated that 100,000 tents were needed. The army said medical supplies such as syringes, painkillers and antibiotics also were scarce.

U.S. State Department official Geoffrey Krassy said many in the quake zone remained cut off from aid.

"About 20 percent of the populated areas have yet to be reached," said Krassy, who normally runs a drug-smuggling surveillance unit monitoring the Pakistan- Afghanistan border. The unit has been redeployed to help quake victims, Krassy told reporters in Islamabad.

The military said roads to the valleys of Jehlum, Neelum and Kaghan in Kashmir remained closed by landslides, and it could take several weeks to clear them. In some areas, Pakistani soldiers evacuated injured villagers by carrying them on their backs.

Torrential rain halted airborne relief efforts in Kashmir, where the Pakistani military said a relief helicopter crashed in bad weather late Saturday, killing all six soldiers aboard. The MI-17 (search) transport craft was returning to base after flying relief workers to Bagh.

Bagh is one of the worst hit towns and relief workers have been unable to provide enough tents for residents, let alone for villagers who have streamed in from the mountains.

Adding to the housing problems, many people whose homes survived the quake have refused to go back inside, afraid that aftershocks could bring down the weakened structures.

"My house is full of cracks, and I won't go inside," said Mumtaz Rathore, huddled under a plastic sheet with his wife and four children.

Loosened by the downpour, mud flowed through Bagh's streets like a river, and water saturated fields used for helicopter landings. Soldiers scrambled to cover supplies that were dropped off by helicopters in previous days.

A doctor, Sajid Hussain, waded through ankle-deep water wearing plastic sandals and green surgical scrubs rolled up to his knees to get to the truck he is using for an operating theater.

"It has been a tragedy and now this rain has made everything so much more horrible for people," Hussain said.