French police are warning people to stay away from the main train station in Marseille after reports of a knife attack Sunday. Marseille police say an operation is "under way". French television is reporting that at least one person has been stabbed and the attacker shot and killed. The Saint Charles train station has been evacuated. "Copyright 2017 Associated Press. All Rights Reserved"
At the time of the report, the police said that the knife attack was on-going and people should stay away.
The attacker had been shot dead and the police were keeping people away for the inevitable investigation, the knife attack wasn't happening anymore. 
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