The show switched from live coverage to a pre-recorded interview within seconds.
Viewers at home immediately took to Social Media, with one person writing: “It’s all happening on ITV Good Morning Britain. Fire alarm, “pls leave the building” and then 10 secs dead air!”
The show switched to a 30-year-special with Lorraine Kelly and Ben Shephard.
A message appeared on TV screens in the top right-hand corner reading: “Sorry for the interruption to our normal programme we’ll be back to the Lorraine studio as soon as possible.”
ITV said in a statement: “It was an isolated incident which was quickly resolved. The building was evacuated as a precaution.”