David Walliams, David Mitchell, Johnny Vegas and John Hurt have voiced a new video for St John Ambulance in response to a survey which found that over 40% of parents have witnessed their own baby choke, with 80% unsure of what to do in the situation.

In the 40 second video, the celebrities take on the characters of animated objects that could potentially choke babies, including a small princess toy, a pen lid, a jelly baby and a peanut.