Explosions that killed at least five people and damaged or destroyed 83 homes in northern China last week were sparked by illegally stored explosives, state media reported.
Media reports had initially suggested that the blasts on Saturday in Baotou in Inner Mongolia, which also injured 25 people, were caused by a gas pipeline explosion.
The explosives were stored in a residential block in the city, the state-run news agency Xinhua reported, citing the local police.
Photo: News.cn
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Sixteen people have been detained by police investigating the accident, the report said.
The explosions collapsed the five-storey building and damaged two neighbouring ones.