A Black American Jacob Blake kids "will be traumatized forever" after seeing their father shot multiple times by the US police in Wisconsin, which has sparked large protests, an attorney says.

Iran PressAmerica: Following the police shooting of Jacob Blake, attorney Benjamin Crump told CNN that Blake's family reached out to him for assistance.

Crump said Blake's three young sons were in the car when he was shot.

"They saw a cop shoot their father. They will be traumatized forever. We cannot let officers violate their duty to protect us. Our kids deserve better!!" Crump said in a post on Twitter.

Protests have erupted in the US state of Wisconsin after police shot a black man many times while responding to what they said was a domestic incident.

The man, identified as Jacob Blake, was taken to hospital for surgery and is now in intensive care, his family said, according to BBC.

Video posted online appears to show Blake being shot in the back as he tries to get into a car in Kenosha.

Authorities in the city declared an emergency overnight curfew after unrest broke out following the shooting.

Hundreds of people marched on police headquarters on Sunday night. Vehicles were set on fire and protesters shouted "We won't back down".

Officers used tear gas to try to disperse hundreds of protesters who defied the county-wide curfew, which is in place until 07:00 on Monday (12:00 GMT).

Earlier, The UN Human Rights Chief Michelle Bachelet said the US must take ‘serious action’ to halt police killings of unarmed African Americans, condemning the killing of 46-year-old George Floyd while in police custody in the city of Minneapolis.

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