At least 31 people were killed and 90 others injured in the explosions in an open-air market in Urumqi, the bloodiest "terror" attack in recent years blamed on radical separatists.
Minister of Public Security Guo Shengkun called for doing utmost to treat the injured, and severely punishing those terrorists.
Guo, also a state councillor and leader of the national anti-terrorism leadership group, went to Urumqi immediately after the attack yesterday.
After checking the scene and learning the process of the crime, Guo held a meeting in Xinjiang Uygur Autonomous Region's publicity department, deploying the investigation of the case.
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He said the incident showed the terrorists' nature of anti-human and anti-society, calling for making a thorough investigation of the case quickly, and severely punishing the terrorists in accordance with law.
"The case warned us that we should keep a vigilant eye on anti-terrorist work, and take an iron-handed attitude to launch a special campaign against terrorism in Xinjiang," Guo said.
Guo also called on local administration to make all out efforts to safeguard social stability, strengthen integrated prevention and control measures, and further screen potential dangers.
He also called for strengthened armed patrol in crowded places, control of dangerous and explosive items, and severely punish all kinds of serious crimes.
Guo urged the local authorities to rely on the people and the grassroots.
Last night, Meng Jianzhu, head of the Commission for Political and Legal Affairs of the Communist Party of China, held an emergency video conference to address the Xinjiang incident.