( CNN ) China has executed three men convicted of plotting a knife attack that killed 31 people at a railway station in the southwestern city of Kunming last year . The Kunming City Intermediate People 's Court said that Iskandar Ehet , Turgun Tohtunyaz and Hasayn Muhammad were put to death Tuesday . It said they had committed intentional homicide , led a terrorist group and organized the mass knifing , which also wounded 141 people . The names of those executed suggested they were Uyghur , a mainly Muslim ethnic group from Xinjiang , northwest China . Authorities had blamed terrorists from the region for the attack . The train station attack shook the country and state media labeled it `` China 's 9/11 . '' Dressed in black and wielding long knives and machetes , several assailants stormed the station on March 1 , 2014 seemingly hacking at anyone in sight . Authorities said police shot four perpetrators dead on the scene and captured another . It was the deadliest of a recent spate of violent incidents that have been blamed on Uyghurs . CNN 's Shen Lu in Beijing contributed to this report .
China executes three men convicted of plotting a knife attack that killed March 1 , 2014 . The train station attack shook the country and state media labeled it `` China 's 9/11 ''