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The former Ukip leader was 15 minutes into his nightly LBC phone-in when he had to evacuate the studio. He had been broadcasting from a make-shift studio at the Conservative Political Action Conference (CPAC) in the US. However, in an unexpected turn of events, Clive Bull, a fellow LBC presenter, had to present the remaining 45 minutes of the show.

LBC Nigel Farage was forced to abandon his radio show on Thursday

When a guy with a gun comes up to you and says ’move’ - that’s what you do Nigel Farage

Sounding slightly bewildered after an advert break, Bull told listeners: “This is interesting… Nigel is at the CPAC conference in Washington and has been broadcasting his programme live from that conference. “However, in the last couple of minutes, a security sweep has taken place. The American Secret Service have been in there and basically cleared the entire hall. “They didn’t know it was going to happen, everybody has been cleared including Nigel - there’s just an empty microphone there at the moment!”

LBC US Secret Service officers could be seen in the background

It’s understood the conference was evacuated while officers carried out an unannounced security check ahead of a speech by Vice President Mike Pence. Bull hoped the former Ukip leader would be allowed back inside the venue to finish his hour-long show. But as the minutes ticked passed, Farage only returned on-air to make a brief appearance by phone to clarify what had happened.

LBC A security dog was at one point see behind Nigel Farage

“When a guy with a gun and a Secret Service badge comes up to you and says more than one time ’move’ - that’s what you do,” Farage chuckled. “What happened today was it was a late addition to the speaker roster of the Vice President Mike Pence and they have literally decided to sweep the building clear. “So 10,000 people, plus the media and everybody have all been forced out, but I’m pleased to say the sun is shining.”

GETTY It's believed the conference was evacuated ahead of Mike Pence's appearance

The show was being streamed on Facebook and Secret Service officers could be seen scouring in the background moments before Farage was cut-off. The appearance of officers left some social media users speculating about the event. One wrote: “I told you something was going on behind him.” Another said: “Let's not jump to conclusions shall we……?” While a third added: “Security first!.....No chances!”

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