An unemployed man, his son and his nephew have been detained in connection with explosions at two Internet cafes in eastern China that killed two people, the official Xinhua News Agency said Saturday.
The near-simultaneous blasts at the cafes in Hefei, capital of Anhui province, occurred May 5 and wounded four other people.
Lu Dongming, 45, his 19-year-old son and his 24-year-old nephew "have admitted they executed the explosions ... in an attempt to blackmail other Internet cafes," Xinhua said.
Police also have seized 21 explosives and 12 detonators from the area where the suspects were hiding, it said.
The report did not give any more details about the reason for the blasts or how the suspects were captured.
Xinhua said an investigation was under way.
The explosions hit the Juxing and Yuhao Internet cafes about 20 minutes apart, blowing out windows and leaving the premises spattered with blood, local officials said earlier.
Attacks with homemade bombs in business disputes or personal grudges are reported frequently in China, where most gun ownership is illegal but explosives are widely available.