A bomb and knife attack at a railway station in China's western Xinjiang region has killed three and injured 79 others, the BBC reported Wednesday. Officials said that the attackers used explosives and knives at Urumqi's south railway station on Wednesday. The local government described it as a "violent terrorist attack" but said the situation was now under control. China's President Xi Jinping, who has just visited the region, has promised to step up "anti-terrorism" efforts. President Xi urged "'decisive actions' against violent terrorist attacks" following the incident. Verifying reports from the region is difficult because the flow of information out of Xinjiang is tightly controlled. Xinjiang has seen a series of violent attacks in the past year. Beijing blames the violence on separatists from the mainly Muslim Uighur minority