An explosion that killed seven people in China's restive far western region of Xinjiang on Thursday was intentional, a government official said.                                             
Police have arrested a Uighur suspect who drove a three-wheeled vehicle into a crowd of people in the southern Xinjiang city of Aksu, Xinjiang government spokesperson Hou Hanmin told a news conference in regional capital Urumqi.                                             
"Xinjiang's development will not be affected by a small group of bad people. The overall situation in Xinjiang is good," she said.