Fires erupted near the White House, shops were looted, and a truck marched in the US city of Minneapolis. Protesters clashed with police in Boston and Washington, DC, while a curfew was imposed in major American cities as the United States struggled to contain chaotic protests over racial discrimination and police tactics.

And the National Guard forces were deployed in 15 American states and Washington, DC, in an attempt to contain the sixth night of violence the day before yesterday (Sunday). The turmoil began with peaceful protests over the killing of George Floyd, a black man, while in police custody.

The New York Times reported that at least five people were killed in the protests and unrest in most American cities for more than six days, against the background of the killing of an American youth, George Floyd, by a policeman.

The newspaper confirmed that most of the deaths were in the cities of Detroit and Indianapolis, and the police forces denied any of its members were involved in these incidents.

AFP correspondents said that tear gas was used to disperse crowds of people who had gathered outside the White House, chanting, burning and carrying protest placards.

Local leaders called on citizens to express their anger at the death of Black Floyd in Minneapolis, constructively, while a night curfew was imposed in several cities, including Washington, Los Angeles, and Houston.

A curfew was imposed, the day before yesterday, in Washington, after new demonstrations broke out near the White House, according to the mayor of the capital, Muriel Bawser.

Bawser wrote on Twitter that the curfew would be in effect from "23:00 Sunday to 06:00 Monday," adding that she had ordered the deployment of the National Guard in the city to support the police.

Hundreds of people gathered Sunday evening in front of the White House, which was placed under heavy guard. A journalist with Agence France-Presse reported that some protesters threw water bottles at the police.

The death of George Floyd in Minnesota on May 25 was the cause of violent protests that forced National Guard forces to patrol several American cities the day before yesterday. A tanker truck attempted to make its way Sunday between thousands of demonstrators on a bridge in central Minneapolis, Minnesota, which required the intervention of a large number of police officers.

The local police said in a statement that no injuries were likely recorded among the demonstrators, describing what happened as a "very disturbing" incident.

The truck driver was wounded, but his life was not in danger, and he was arrested and taken to hospital.

The demonstration, in protest of the death of George Floyd in the hands of the police, was launched from the Capitol in St. Louis, where the Minnesota Parliament. The demonstration, which included about 2000 people, went in a peaceful atmosphere towards the center of Minneapolis.

On Sunday, Democratic presidential candidate Joe Biden visited a site protesting against racism in Delaware, saying that the United States was "in agony." Biden wrote on Twitter, "We are a nation in pain now, but we must not allow this pain to destroy us."

And confrontations took place in more than 20 cities, including Los Angeles, Chicago and Atlanta, which prompted the authorities in these cities to impose a night curfew, while several states called in the National Guard to help control the civil unrest that the United States had not seen in many years.

From Seattle to New York, tens of thousands demonstrated to demand the charge of premeditated murder and the arrest of others in the case of Floyd, who died of asphyxiation after white policeman Derek Chauven fixed it to the ground with his leg.

In Los Angeles, security agents fired rubber bullets and used batons to disperse demonstrators who burned a police car.

In several cities, including New York and Chicago, clashes took place between protesters and the police, who used pepper spray in response to the bombardment, while the glass fronts of several stores in Philadelphia were broken.

In New York, the police arrested 350 people and 30 policemen were wounded in clashes.

The Pentagon announced that about 5,000 members of the National Guard have been mobilized in 15 states, as well as in the capital, Washington, with 2,000 others on reserve.

US President Donald Trump has accused the extreme left of fomenting violence that included pillaging and arson. Trump, who has repeatedly condemned the "heartbreaking" death of George Floyd, said the demonstrators were shaming the man's memory.

Floyd's death issue also causes protests outside the United States, notably Canada and Britain.

Clashes in more than 20 cities including Los Angeles, Chicago and Atlanta, prompting the authorities in these cities to impose a curfew.

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