A lawyer for Ms Shelby said the officer was "elated" that the jury found her not guilty.

A white police officer who fatally shot an unarmed black man on a city street has been charged with first-degree manslaughter, prosecutors in Tulsa, Oklahoma, said.

Police have used tear gas to disperse protesters after officers were injured and a major road was shut down during a demonstration over the latest fatal shooting of a black man by US police.