Attacker injures a police officer in central Paris, minister says

A police officer was critically injured in a stabbing attack in Paris’ Champs Elysees shopping district on Thursday after a security guard at a boutique called police after spotting a man who appeared to be carrying a knife, the Paris police chief said.

The attacker was also critically injured, the police chief, Laurent Nunez, told reporters.

France is on its highest state of security alert as it gears up to host millions of visitors, athletes and world leaders during the Paris Olympic Summer Games...