The One Show 20th anniversary episode interrupted by emergency Government alert

The One Show’s 20th anniversary special episode has been disrupted minutes after starting by a blasting Government alert about wildfires.

The BBC chat show was just beginning an extended hour-long anniversary special when hosts Alex Jones and Roman Kemp were drowned out by an alarm.

When introducing the segments set to air across the episode, Kemp was explaining how former host Christine Lampard was returning to the studio when the alarm could be heard on the broadcast.

The One Show hosts Alex Jones and Roman Kemp were interrupted by a Government alert on air (Doug Peters/PA)

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While Kemp pushed through and kept speaking, Jones shook her head and raised her hands, before she said: “You couldn’t make that up could you. Is that a fire alarm?”

Kemp then faced someone off camera and asked: “Is there some sort of fire alarm?”

“We continue,” they both said, before running through the rest of the segment introductions before the alarm cut out and Kemp said: “Ok, it’s stopped”.

The noise was an emergency alert sent out to the phones of people across England and Wales to warn communities from the growing threat posed by wildfires.

The episode featured Angellica Bell, JB Gill, Jones, Kemp, Vernon Kay and Clara Amfo (Doug Peters/PA)

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The alert, which were sent on a rolling basis from 7pm, warned people not to light anything that could spark a fire, including barbecues, campfires, and fireworks.

Recipients have also been urged to report any fire immediately by calling 999.

Following the airing of a segment, Kemp then told viewers: “As you will probably be aware that was actually a wildfire alert on everyone’s phones.

Matt Baker and Christine Lampard spoke about their involvement with the BBC series (Doug Peters/PA)

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“You would have heard it on the opening of our show, but as always we hope everyone is staying safe, of course.”

At around the same time, theatregoers taking their seats ahead of a performance of Jesus Christ Superstar at the London Palladium gasped as the alert rang out on phones across the auditorium.

Later in the show presenters Clara Amfo and Angellica Bell also faced disruption.

When presenting a segment outside, an ambulance could be heard driving past with its sirens on, nearly drowning the presenters out for about 15 seconds as they tried to speak.

Tom Grennan performed during the special episode (Doug Peters/PA)

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Elsewhere during the episode, the event celebrated the long-running show, speaking to former presenters, guests and people who have been assisted by the programme.

While being reunited with some people she helped in past episodes, Bell broke down in tears, with Jones declaring: “Angellica doesn’t cry often, so that’s a result!”

The episode also looked back at celebrity interviews and past musical performances from artists including Harry Styles, Elton John, Olivia Dean, Stormzy and Take That.

Wrapping up the show, Jones then asked to share a message with viewers, in which she said: “A huge thank you to the team and crew who work relentlessly hard on this programme to make it a brilliant show for all of you every day.

“Thank you for all of the guests for entertaining us, being so generous with their time and just being all-round nice people. Thank you to all of my co-hosts over the years. I’ve been so lucky to sit next to all of them.

She added: “Lastly, thank you to all of you at home. You are the most important people in all of this. Thank you for being with us every weekday. It’s a real privilege for us all to be with you all at seven every night.”