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Death toll in China oil pipeline blast rises to 52 people after more bodies found

  • A man walks past damaged vehicles following a pipeline explosion in Qingdao in east China's Shandong province Friday, Nov. 22, 2013. Leaked oil from a ruptured oil pipe, owned by China's largest oil refiner, Sinopec, caught fire and exploded Friday in an eastern Chinese port city, killing and injuring many people. (AP Photo) CHINA OUT

    A man walks past damaged vehicles following a pipeline explosion in Qingdao in east China's Shandong province Friday, Nov. 22, 2013. Leaked oil from a ruptured oil pipe, owned by China's largest oil refiner, Sinopec, caught fire and exploded Friday in an eastern Chinese port city, killing and injuring many people. (AP Photo) CHINA OUT  (The Associated Press)

  • Firefighters work on a damaged site following a pipeline explosion in Qingdao in east China's Shandong province Friday, Nov. 22, 2013. Leaked oil from a ruptured oil pipe, owned by China's largest oil refiner, Sinopec, caught fire and exploded Friday in an eastern Chinese port city, killing and injuring many people. (AP Photo) CHINA OUT

    Firefighters work on a damaged site following a pipeline explosion in Qingdao in east China's Shandong province Friday, Nov. 22, 2013. Leaked oil from a ruptured oil pipe, owned by China's largest oil refiner, Sinopec, caught fire and exploded Friday in an eastern Chinese port city, killing and injuring many people. (AP Photo) CHINA OUT  (The Associated Press)

  • Policemen and firefighters work on a damaged site following a pipeline explosion in Qingdao in east China's Shandong province Friday, Nov. 22, 2013. Leaked oil from a ruptured oil pipe, owned by China's largest oil refiner, Sinopec, caught fire and exploded Friday in an eastern Chinese port city, killing and injuring many people. (AP Photo) CHINA OUT

    Policemen and firefighters work on a damaged site following a pipeline explosion in Qingdao in east China's Shandong province Friday, Nov. 22, 2013. Leaked oil from a ruptured oil pipe, owned by China's largest oil refiner, Sinopec, caught fire and exploded Friday in an eastern Chinese port city, killing and injuring many people. (AP Photo) CHINA OUT  (The Associated Press)

Rescuers have found more bodies at the scene of oil pipeline blasts in eastern China, bringing the death toll in one of the country's worst industrial accidents this year to 52.

The Qingdao government information office said on its microblog Sunday that four more bodies had been found. Eleven other people are still missing following Friday's explosions from a ruptured oil pipeline owned by China's largest oil refiner, Sinopec.

The information office says rescue efforts are continuing. A total of 136 people have been injured, 10 of whom are in critical condition.

Sinopec apologized Saturday for the explosions that ripped slabs of pavements and overturned vehicles. It said it would investigate and "give timely reports."