The US rapper was performing at Drai's Beachclub on Saturday when a large drink was thrown on stage, footage posted on social media showed.

Cardi B - whose real name is Belcalis Almanzar - appeared shocked for a moment and then threw her microphone towards an audience member.

The Las Vegas Metropolitan Police Department said a woman reported a battery case to the force, a day after the concert.

The woman - who was not named - said "she was struck by an item that was thrown from the stage" during a concert on Saturday, police said in a statement.

The incident has been documented in a police report but no arrests have been made, officials said.

Sky's US partner NBC News has reached out to representatives for Cardi B for comment. Drai's Las Vegas did not immediately respond to a request for comment.

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In recent months, several high-profile artists have been hit by objects while performing.

In June, pop star Bebe Rexha shared pictures of her black eye after she was hit by a mobile phone.

Meanwhile, footage of a fan throwing their mother's ashes at Pink in London quickly went viral.

Harry Styles has also been hit by flying objects at his gigs, including Skittles which hit him in the eye and led to the sweets brand making a public plea on social media.