Given how the BBC just loves to regurgitate online footage already posted elsewhere and then signpost it as "news", one can only assume that its vague reference to footage means that they haven't yet visited Liveleak.
Or maybe it's that the BBC is so keen not to do anything that might cast a minority in a bad light that actually they're going to conveniently forgo the opportunity to recycle this little bit of film.
Which one could it be, I wonder.