A message on the Good Morning Britain Twitter account read : “We’ve been evacuated because of a fire alarm. Everyone’s safe and we’re hoping to get back in and on air ASAP.”
Guest Holly Brockwell, who was due to speak on GMB, tweeted a picture of smoke pouring out of the window of the studios.
Just before 7.30am, she tweeted: “Tonnes of fire engines, fire still blazing.”
London Fire Brigade tweeted: “Good Morning Britian off air while we tackle fire at ITV studios. A room on the first floor is alight. 50 people evacuated.”
Ben Shephard’s co-anchor Kate Garraway and news presenter Ranvir Singh apologised to viewers in a video on GMB’s Twitter account.
Garraway said: “There’s five or six fire engines so they’re treating it very seriously, which is comforting, isn’t it?”