Knifeman killed by St Louis police

US police officers in St Louis shot and killed a 23-year-old man who they say was wielding a knife and refused to drop it. 

The incident happened not far from Ferguson, which has seen days of protests over the fatal shooting of 18-year-old Michael Brown by a police officer.

Police Chief Sam Dotson said officers responded to an alert at a store where the man was reported to have stolen energy drinks and a pastry.