MC Hammer warned Black Lives Matter protesters not to pick up conveniently placed bricks in the street.

MC Hammer has issued a stark warning to Black Lives Matter protesters amid the ongoing riots. The rapper took to Twitter to post a picture of a pile of bricks, which he claimed were conveniently placed near the demonstrations.

Her urged those protesting not to "take the bait", suggesting that the bricks had been placed there by those who want the marches to get out of hand and violent.

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Activists across the United States have taken to the streets in the aftermath of George Floyd, who died after an officer knelt on his neck for nearly nine minutes while arresting the black man.

The tragedy has sparked several nights of protests in Minneapolis that have resulted in arson, looting and vandalism. But some believe the riots were orchestrated by those who wanted to bring down the reputation of the Black Lives Matter movement.

And this appears to be the opinion of MC Hammer, who shared a picture of a pile of bricks just conveniently placed in the middle of a street in an undisclosed location.

There has been riots in the US. Photo: Getty Images.

The musician tweeted: "It seems that free bricks are conveniently turning up at most of the protest.

"Don't take the bait. It's a SETUP!!!!"

READ ALSO: Police officer who kneeled on George Floyd's neck 'tried to kill' black man in 2008

He finished with the hashtags #PeacefulProtests #BlackLivesMatter.

Last night the protests reached the gates of the White House, which was then plunged into darkness when all the external lights were turned off. Donald Trump is said to have been whisked into a secure bunker previously used by leaders during against terrorist attacks, though he claims this is "fake news".

Secret Service agents reportedly took him into the protective facility as the demonstrations flared up outside.