Viral video footage showing a man "being restrained" in a room by five uniformed officers is being investigated by a police force.

In the video, which appeared on social media sites at the weekend, a male is shown being struck at least seven times on or about the head by an officer.

The male officer has an object in his right hand which appears to be Pava spray, which discharges into the room as his hand comes down on the man.

The footage, recorded by a third party, is cut short when another male officer turns and closes the door on the camera.

West Midlands Police confirmed on Sunday that it was aware of the video, adding that footage and officers' body-worn cameras were now being reviewed.

It was initially reported that the footage may have featured Humberside Police officers, however that force later said an investigation into several of its officers was "not in relation" to the incident shown.

The footage captured at least one female and four male uniformed police officers involved in the incident.

The recording appeared to show two male officers holding a man by his wrists, who then goes to the ground.

At one point the female officer appears to retreat, bringing her hand up to her eyes, as the Pava spray is fired across the room.