Four St. Louis police officers were shot after peaceful protests over the death of George Floyd turned violent overnight, and a retired police captain was shot to death by looters at a pawn shop.
Separately, a man was gravely injured in an exchange of gunfire with police in a northern suburb.
Chaos ensued after nightfall, with protesters smashing windows, looting businesses and setting fires. Police say the four officers were shot while standing in a police line.
The Kansas City Star reports that Mayor Quinton Lucas joined a downtown protest (in Kansas City) but that police declared the gathering unlawful shortly after he left Monday night.