The Chinese military is air-dropping food and medicine to earthquake survivors in remote mountain villages of Sichuan province as time is running out for thousands buried under the rubble and mud of collapsed buildings, homes and schools.

China raised the official death toll again Wednesday to nearly 15,000. Authorities expect that number to go up as rescue crews arrive at the hardest-hit areas and begin digging through the rubble.

As help arrived in some of the hardest-to-reach areas, some victims who have been trapped for more than two days were being pulled out alive.

Survivors gather to wait for a Chinese military helicopter bringing in supplies in Wenchuan, the epicenter of the earthquake that struck southwest China's Sichuan province, 14 May 2008

The official Xinhua news agency says seven military helicopters have delivered supplies to Wenchuan county, the epicenter of the 7.9 magnitude quake, and several surrounding counties.

A local government official told Xinhua that only 2,300 of the 10,000 residents in the southwestern town of Yingxiu survived the earthquake. The official says rescuers found the situation in Yingxiu worse than expected, with traffic cut off and children buried in debris.

The Sichuan provincial government says a hydropower plant located between the hard-hit areas of Dujiangyan City and Wenchuan County has been put out of commission by the quake. Local officials tell state-media that there are severe cracks in the dam (Zipingpu Hydropower Station), and that the plant and its buildings have collapsed and sunk.

Wenchuan county also is home to the Wolong Nature Reserve, China's largest breeding center for giant pandas.

Wang Yi, a spokesperson for the State Council's Taiwan Affairs Office, told reporters they finally made contact with reserve officials, who assured him that two pandas Beijing wants to send to Taiwan are safe.

More than 50,000 troops have been sent to assist with relief work in quake-affected areas, but China has said conditions are not right for international teams to come in and help.

Today, Pope Benedict called for prayers to be said for victims of the deadly earthquake. Speaking during his weekly audience in St. Peter's Square, the Pope said his thoughts went out to the people of Sichuan and its surrounding areas.

Some information for this report was provided by AFP, and Reuters.