WATCH | A man attacked a police officer with a hammer at Paris' Notre Dame Cathedral.
UPDATE 12:43 p.m. EST: The attacker said he was an ISIS "soldier of the caliphate."
UPDATE 12:33 p.m. EST: A French official said the attacker cried "It's for Syria!"
Paris police press department confirms that the attacker used a hammer as a weapon and injured the police officer outside Notre Dame.— NBC News (@NBCNews) June 6, 2017
UPDATE 11:33 a.m. EST: Police confirmed that a hammer was used in the attack.
UPDATE 11:26 a.m. EST: Police say the situation is under control.
UPDATE 11:12 a.m. EST: France's counter-terror office is investigating the incident.
MORE: Paris police confirm officer injured by a man who was shot and injured by police.— Reuters UK (@ReutersUK) June 6, 2017
UPDATE 10:56 a.m. EST: The officer and the attacker were both injured.
UPDATE 10:53 a.m. EST:
Early reports suggest a man attacked a police officer with a hammer and was then shot, the BBC reported.
Authorities have warned people to stay away from the cathedral, which is located in a popular tourist area.
ORIGINAL STORY: Police are responding to the Notre Dame cathedral in Paris after reports of gunshots and panic, the BBC reported.