China charges four in Kunming station attack
The government has said knife-wielding militants from the restive western region of Xinjiang launched the premeditated attack at the Kunming Railway Station in Yunnan province in which 29 people were killed and 140 injured.
China's leaders have vowed to strike hard at religious extremists and separatist groups, which it blames for a series of violent attacks in Xinjiang, the traditional home of the Muslim Uighurs.
(Reporting by Michael Martina; Editing by Ron Popeski)