Greek police resort to a violent crackdown against angry protesters in the country's second-largest city on Monday after a teenager from the minority Roma community was shot in the head by police.

US police have killed more people through the first seven months of the year than they have any other year on record, a study shows.

US police shooting death of yet another African American in the Midwestern city of Akron has sparked protests in the city, leading authorities to take unusual measures in fear of an unrest.

Hundreds of people have held protests after police in Grand Rapids, Michigan, released three videos of a white police officer shooting a Black man dead.

The former head of one of New York City's police unions was charged with fraud, the US Justice Department said on Wednesday.

A US border patrol agent fatally shot a migrant, who was trying to cross the US-Mexico border into Arizona, over the weekend.

Two of the three white men convicted of murdering Ahmaud Arbery repeatedly used racial slurs in text messages and social media posts.