The 6.4-magnitude quake hit a poverty-stricken region near the Afghan border before dawn on Oct. 29, leaving thousands homeless. The death toll is likely to rise to more than 300, officials said.

Relief workers were still discovering mountain villages wrecked by the temblor that have yet to receive aid, the International Committee of the Red Cross said in a statement.

It estimated some 20,000 to 30,000 people were affected. The U.N. has put the figure at more than 100,000, half of them children.

The Zakat Foundation of America, a non-profit organization based in Illinois, has pledged $50,000 towards initial rescue and relief efforts.

"This is one of the poorest regions in Pakistan, where most of the people are still suffering from the disaster in 2005," said Nalan Dal, the Pakistan representative of Zakat Foundation.

Worst-hit was Ziarat district, which has about 50,000 residents, the ICRC said.

Authorities and the army are transporting tents, sleeping bags and food packages to villagers in the affected valleys of Baluchistan province. Many tents need to be insulated or fitted with stoves as the weather cools, officials said.

The United States said it would provide an initial $1 million in assistance. China, Germany and other countries have also offered financial help.