NEW : China was shocked in March as a violent terror attack in another train station , in Kunming , saw 10 men armed with long knives kill 29 commuters . President Xi -- who was visiting region -- urges `` decisive actions '' against terror attacks . NEW : Station reopens 2 hours after blast , as passengers return as armed police watched . Posted at 12:29 PM ET on Jun 25, 2015 | There have been tensions between Uyghurs and Han Chinese in Xinjiang .
NEW : President Xi -- who was visiting region -- urges `` decisive actions '' against terror attacks . NEW : Station reopens 2 hours after blast , as passengers return as armed police watched . Posted at 12:29 PM ET on Jun 25, 2015 | There have been tensions between Uyghurs and Han Chinese in Xinjiang .