SWAT team members subdue suspected "hijackers" during a drill in Urumqi, Xinjiang Uygur autonomous region, on Monday, Dec 29, 2014. [Photo by Fang Tao / Xinhua]

URUMQI - A total of 181 terror gangs have been busted after police in Northwest China's Xinjiang Uygur autonomous region started a sweeping anti-terror campaign a year ago.

Data from the regional committee of the Communist Party of China shows that 96.2 percent of the terror groups were thwarted at the planning stage and 112 suspects surrendered to the police.

The campaign was launched after the bombing of a market in the regional capital Urumqi that killed 39 people in May of 2014.

Earlier on March 1, 2014, thirty-one people were killed and 141 injured in a railway station attack in the Southwest Chinese city of Kunming in Yunnan province.