BBC Live News Broadcast Cut Short!

Did anyone else see that this evening? I don't think I've ever seen a BBC live news report stopped in midstream by what looked like some sort of security guard. The report was talking about the present sex scandal involving UK football clubs. About 200 yards behind the reporter was Sheffield United FC Stadium (if that's incorrect, I'm sure someone on here will correct me). Then, in the middle of the reporter talking live to the BBC studios in London, this security guard walked behind the journalist and you could then hear him talking in the background to the TV crew. He then approached the reporter and interrupted her conversation and then she turned to him and said, 'excuse me, this a live BBC news broadcast', and a second later, the broadcast was cut short with an apology from the London studio to the viewers.

Extraordinary - just looked to see if it was mentioned anywhere on the BBC news website, but couldn't see any reference to the incident.