ISLAMABAD, Iran - Rescue teams using dogs and heavy machinery pulled more bodies from the ruins of flattened villages in central Iran today, and officials raised the death toll from a powerful earthquake to at least 500. The count was expected to rise even higher.

A 14-year-old girl was pulled out of the rubble alive and immediately asked if her family survived.

Teams were hampered by bad weather and the mountainous terrain, working in a cold, heavy rain after a night during which temperatures dropped below freezing.

Mohammad Javad Fadaei, deputy governor of Kerman province, said more bodies had been discovered. "The death toll is now 500, and there's a possibility that the figure will increase," he told The Associated Press. At least 900 people were injured.

Many survivors huddled in tents, trying to escape the chill, after the magnitude 6.4 quake struck early Tuesday, damaging some 40 villages with a combined population of 30,000 people and leaving many homeless. Rescue workers were still digging out survivors and bodies in the three most isolated villages.

In Hotkan, shouts of "God is great" echoed in the ruined village after rescuers pulled a girl from under the rubble of a destroyed mud house today.

Looking dazed and confused, 14-year-old Zehra Hosseini cried as rescuers pulled her out.

"Where are my father and mother, brother and sister? They must be alive," she shouted. The rescuers told her they didn't find any other survivors in that same area, but she didn't appear to hear them.

Earlier in the day, Zehra Mirzaei, 18, was pulled out of the ruins and looked around what was left of her village: piles of dirt and stone.

"This is not my village, this is not Hotkan - I wish I had died with the others," she said, beating her head and chest in grief.

Search efforts also continued in Sarbagh and Dahoueieh. In Dahoueieh, every building except a mosque had collapsed. At least 80 percent of the buildings in Sarbagh were leveled.

President Bush also expressed his condolences. "The United States stands ready to assist the people of Iran in responding to this tragedy, and we will be in contact with the government of Iran to offer concrete help," a written statement from the White House said.

The Iranian government - which shuns direct contacts with the United States - has so far not asked directly for international help. Still, the Japanese government announced today that it would send blankets, tents and other aid worth $191,000 to aid quake victims.

Iran is on seismic fault lines and is prone to earthquakes. It experiences at least one slight earthquake every day on average.