CNN is dismissing critics who claim the network staged a demonstration to make Muslims look sympathetic in light of the weekend terror attacks in London.

A video uploaded online showed CNN correspondent Becky Anderson preparing to narrate video of a group of Muslims holding up signs in solidarity with the victims of the attacks.

Before Anderson begins her reporting, the demonstrators are seen being guided by police into a spot together so that the camera can frame the shot in an area that had been blocked off by police.

The video was uploaded to YouTube with the title, "CNN staging the narrative before making report, they are truly Fake News!"

It was shared on Twitter by the British conservative news personality Katie Hopkins, who said the video showed CNN "scripting a narrative. Right before your eyes."

But CNN dismissed the claim that it had staged the scene for any purpose outside of getting a clear shot on camera.

"This story is nonsense," CNN said in a statement. "The group of demonstrators that was at the police cordon was being allowed through by officers so they could show their signs to the gathered media. The CNN crew along with other media present simply filmed them doing so."

The rampage in London on Saturday night involved a car plowing into a crowd and knifemen stabbing pedestrians. At least seven were killed and nearly 50 were injured.