UN chief Guterres asks US protestors to voice grievances in peaceful manner

Police have used tear gas to disperse the crowds and hundreds of people have been arrested as protests turned violent in some cities

UN chief Antonio Guterres has appealed to the protesters demanding justice for the custodial killing of African-American George Floyd to voice their grievances in a peaceful manner and called on authorities to show restraint while responding to the widespread protests held across the US.

Thousands of protesters took to the streets across the US to demonstrate against the gruesome killing of Flyod, a 46-year-old man who was pinned to the ground in Minneapolis last week by a white police officer who kneeled on his neck as he gasped for breath.

In his last moments before death, Floyd said: 'I can't