Breaking news out of Paris, France:

A knife-wielding attacker kills four police officers at police HQ in Paris, before being shot dead https://t.co/erNE1mWAuh

Early reports (which we caution could change) say the attacker worked for the police:

UPDATE: The police union in France now says 4 officers have been killed in a knife attack committed by an employee at the headquarters in Paris.

At least four police officers have been killed in a knife attack at the Paris police headquarters near Notre Dame. The assailant has been shot dead. Some reports say he'd worked at the HQ.

The motive is unclear at this point, and we’re not saying that sarcastically:

JUST IN: Four people have been killed in the stabbing at the Paris police headquarters, according to CNN affiliate BFM TV.

The motive of the attacker, who was a longtime administrative employee for the police, is still unknown. https://t.co/hVZgd7B5qk

— CNN International (@cnni) October 3, 2019