Several hundred protesters observed six minutes of silence in front of the St. Louis Police Department, then chanted "stop killing us."
They told North Korea to stop developing missiles and nuclear weapons and to quit making threats against the U.S. — or face destruction.
Police say they arrested a 21-year-old man late Saturday in west London. He has not yet been charged or identified.
Protesters marched in a St. Louis to show their opposition to the acquittal of a white former police officer in the shooting death of a black man.
Commuters reported a noise and a flash aboard the District Line train at Parsons Green station in the southwest of the city, followed by chaos.
Recent events have put a strain on an already fragile relationship between the two nations with a long history of distrust. One former Mexican diplomat gauged it where it stands now.
The International Olympic Committee met in Lima, Peru this week, where they officially announced Los Angeles and Paris as future host cities.
Irma is now a post-tropical cyclone, with top winds of only 25 mph — a far cry from the Category 4 storm that ravaged the Florida Keys on Sunday.