Pakistani officials: Bomb blast kills at least 27 people in Karachi

ISLAMABAD, Pakistan (CNN) -- Back-to-back blasts in Pakistan's largest city killed at least 27 people, police said.

The two explosions wounded 60 others in Karachi's Abbas town, said Muhammad Aslam, a police official. Police believe there are more bodies under the rubble of a market damaged by the blasts.

Pakistan's Prime Minister Raja Pervez Ashraf condemned the attack.

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