One French official, says this attack near Notre Dame, might be the worst ambush of police in the city’s history.
🔴 At least four police officers have been killed in a knife attack at the Paris police headquarters. The assailant has been killed.
@lauracellierf24 has the latest. pic.twitter.com/onMiuKjkrM
— FRANCE 24 English (@France24_en) October 3, 2019