BEIJING - A series of bombs packed with ball bearings exploded outside a provincial headquarters of China's ruling Communist Party on Wednesday, police and reports said, killing at least one person days after a fiery attack in Tiananmen Square.
The blasts in Taiyuan come a little over a week after a fatal car crash described by authorities as a "terrorist attack" at the symbolic heart of the Chinese state, and days ahead of a highly anticipated meeting of top party leaders in Beijing.
"There were several explosions caused by small explosive devices near the party provincial commission in Taiyuan," the capital of the northern province of Shanxi, local police said on a verified social media account.
Eight "explosive sounds" were heard, the official Xinhua news agency said, adding that police "discovered ball bearings and explosive devices made using electric circuitboards" at the scene.
Metal fragments such as ball bearings and nails are used in bombs to increase injuries.
The finds indicated the blasts were "self-made bombs", Xinhua cited police as saying.
One person was confirmed dead, another was severely wounded and seven slightly hurt in the blasts, a provincial government news portal said, citing police.
"Witnesses said that there were seven sounds of explosion that lasted several minutes and were very powerful," Chinese media company Caixin reported on its verified microblog.
"Some interviewees said that they could feel the power of the blast wave even 100 metres away and that the ground was shaking."