International rescue workers are scouring flattened debris for survivors in Iran 's shattered ancient Silk Road city of Bam after a violent earthquake killed more than 20,000 people .
International rescue workers are scouring flattened debris for survivors in Iran 's shattered ancient Silk Road city of Bam after a violent earthquake killed more than 20,000 people .
International rescue workers hacked desperately through flattened debris for survivors and cemeteries overflowed in Iran 's ancient Silk Road city of Bam yesterday .