A prankster has revealed he was the one who blasted 'sex noises' from a loud speaker as BBC Breakfast's political presenter delivered a Brexit broadcast.

Political correspondent Emma Vardy was interrupted by the racy audio as she reported live from outside the Houses of Parliament in London this morning.

It led to suggestions that the BreX-rated noises beamed to television screens across the nation could have been caused by a pair of 'remoaners'.

But a prankster known as DiscoBoy has claimed he was behind the stunt - saying it was a 'spur of the moment' idea.

A prankster known as DiscoBoy took credit for the stunt saying it was 'spur of the moment'

He posted a video clip on Facebook taken early this morning showing him sneaking up on the live BBC broadcast

He posted a video clip on Facebook taken early this morning showing him sneaking up on the live BBC broadcast.

The prankster then appears to play the noises out of a loud speaker.

Show bosses later admitted that the noises had been played out loud by a cheeky bystander who snuck up on Vardy during her broadcast.

Political correspondent Emma Vardy was interrupted by the racy audio as she reported live from outside the Houses of Parliament in London this morning

It led to suggestions that the BreX-rated noises beamed to television screens across the nation could have been caused by a pair of 'remoaners'

Vardy managed to completely ignore the sultry sounds and keep a straight face as she continued with her report - and hosts Naga Munchetty and Charlie Stayt back in the studio did not mention the noises.

But viewers at home were left baffled and took to Twitter to share their confusion, with one writing: 'Ermmmm the background noise during that last interview at the Houses of Parliament! What the heck BBC!'

Abbey Folland said: 'What's with the porn sound effects during that report?'

Another added: 'Looooolllllll at someone putting the cheeky porn noise over a news broadcast on BBC Breakfast this morning and fair play to the reporter for not laughing.'

BBC Breakfast wrote on Twitter: 'Someone nearby was playing music whilst we were live! So that's what you could hear.'

But viewers replied saying the corporation had been 'caught red handed' and added: 'We all know that wasn't music.'

A BBC spokesman told MailOnline: 'The interruption was beyond our control and our reporter remained professional throughout.'