Bomb blast kills four at Chinese police station

Police in Chongqing city arrested Jiang Jianjun on Sunday after his ex-wife called to complain that he was threatening her, the Beijing Morning Post said.

The police were apparently unaware that Jiang was wearing explosives until the blast, which occurred during a body search at the station, the newspaper said.

Three people died immediately, including Jiang and a police officer, and one more person died in hospital, it said. It was not clear if the explosives were detonated accidentally or by Jiang.

Last week a suicide bomber killed three people and injured more than 30 bystanders in the southern province of Hunan.

(klei/dpa)