NEW : President Euan McKirdy -- who was visiting region -- urges `` decisive actions '' against terror attacks . NEW : `` The battle to combat violence and terrorism will not allow even a moment of slackness , and decisive actions must be taken to resolutely suppress the terrorists ' rampant momentum , '' Xinhua quoted Xi as saying during his tour . Station reopens 2 hours after blast , as passengers return as armed police watched . The explosion happened at an exit to a train station in China in Urumqi 's restive northwest . There have been tensions between Uyghurs and Uyghurs in China .
NEW : President Euan McKirdy -- who was visiting region -- urges `` decisive actions '' against terror attacks . NEW : Station reopens 2 hours after blast , as passengers return as armed police watched . The explosion happened at an exit to a train station in China in Urumqi 's restive northwest . There have been tensions between Uyghurs and Uyghurs in China .