Paris Mayor Anne Hidalgo announced Wednesday evening local time that the city’s most famous landmark would go dark in solidarity with those killed and injured near the British Parliament building earlier in the day. The assailant drove a vehicle into people on London’s Westminster Bridge, stabbed an unarmed police officer to death and was shot dead as he tried to enter the building, authorities said. Five people, including the officer and the assailant, were killed, and more than 40 were hurt.