Brahim Deby, heir apparent to President Idriss Deby of Chad, is murdered in Paris, France.
- A Yemeni human rights group files a war crimes complaint against Saudi Arabia's Crown Prince Mohammed bin Salman in Paris as the prince visits France.
- A car carrying firearms and gas bottles deliberately rammed a police vehicle on the Champs-Elysees in Paris, France, subsequently bursting into flames. The driver, who was on a security watchlist, was shot dead.
- A summit begins in Paris, France, to restart peace negotiations between Israel and Palestine in an effort to discuss a possible two-state solution to the conflict. However, neither Israel nor Palestine sent representatives to the summit, casting doubts on a breakthrough.
- Paris, France, implements a pollution-reduction program that bans residents from driving cars built before 1997, and motorcycles built before 2000, on weekdays inside the city limits between 8 a.m. and 8 p.m.
- A senior French police commander is killed by a knife-wielding 25-year-old man outside his home in Magnanville near Paris, France. The attacker, who retreated inside the house, is also killed when elite police commandos storm the residence after negotiations failed. The commander's partner, a female administrative police official, is found dead inside the home, while a young boy is rescued physically unharmed. The Islamic State, via its Amaq News Agency, claims responsibility for the attack.