UPDATE - Paris: 4 police officers killed in knife attack

UPDATES WITH DEATH TOLL OF POLICE OFFICERS; ADDS PARIS MAYOR'S REMARKS; REVISES HEADLINE

By Diyar Guldogan

ANKARA (AA) - At least four police officers were killed after a man armed with a knife attacked a police headquarters in France's capital Paris, local media reported Thursday.

The attacker was shot dead by police officers at the scene.

Paris Mayor Anne Hidalgo confirmed on Twitter that the attack caused multiple casualties among police officers.

"Paris is mourning for its people this afternoon after this appalling attack on the @prefpolice.

"The toll is heavy, several policemen lost their lives. In my name and that of the Parisians, my first thoughts go to the families of the victims and their relatives," Hidalgo said.

Any statement was yet to be made on the reason of the attack.