George Floyd arrest: Officers involved in deadly arrest of US man fired

Four US police officers involved in an arrest which killed the man they were restraining have been fired.

George Floyd died on Monday night after an officer pinned him to the ground and knelt on this neck for eight minutes.

Minneapolis Mayor Jacob Frey said on Twitter it was "the right call" to fire the officers involved.

But the Police Officers Federation of Minneapolis said in a statement judgement should not be rushed.

"We must review all video. We must wait for the medical examiner's report," it said.

"Officers' actions and training protocol will be carefully examined after officers provide their statements."

Video of Floyd's arrest shows him lying on the ground next to a police car as an officer kneels on his neck.

"Please, please I can't breathe," Floyd  can be heard pleading with the officer.

"My stomach hurts. My neck hurts."

As onlookers urge the officer to let Floyd up they notice his nose is bleeding. Soon after that he goes limp.

The officer remains kneeling on his neck even after he becomes unresponsive, up until paramedics arrive and put the man on a stretcher.

A statement from Minneapolis police provided to NBC says officers were responding to a forgery in progress and found the suspect in his car.

It's alleged he resisted arrest.

The Minnesota Bureau of Criminal Apprehension and the FBI will be investigating the arrest.