An explosion at Urumqi train station on Wednesday in the far western region of Xinjiang in China killed three people and left another 79 injured , highlighting the grim challenges of security and simmering ethnic tensions in the resource-rich province the size of Iran .
Khaysa inti jalant China tuqin aka miercoles urux Urumqi trena sayañan utjawayatayna mä phallawiwa . Ukat jiwatanakax kinsaniw uñsti ukjamarus paqalltunk llatukaniw usuchjataraki .