Today’s incident was regarded as the worst violence as militants who largely confined to knife attacks used multiple explosives besides triggering a car bomb.
Last month Xinjiang was the scene of a railways station attack which killed three and injured 79 people. The attack was blamed on radical religious extremists seeking to take control of the region.
Police will step up patrols and security control over possible terrorist targets and prevent ripple effects, President Xi said in a statement.
He asked local authorities to solve the case fast, put the injured under proper care and offer condolences to families of the victims.
The Chinese government will continue to work hard in fighting terrorism and try its best to safeguard social stability, he said.
A working group led by Minister of Public Security Guo Shengkun has left for Xinjiang to supervise the investigation and handle the crisis.
Minister of public security Guo rushed to Urumqi to supervise the investigation into the explosions, China National Radio reported.