A blaze on the first floor meant that 50 people, including the show's famous faces, had to leave the building in central London just before 7am while fire crews raced to the scene.
Viewers were then left with a pre-recorded GMB segment, filmed for emergencies such as these, before an episode of Dinner Date aired instead.
Luckily. no one was hurt in the blaze and Ben was able to keep fans updated with several video clips via Twitter.
In one, he jokes that his co-stars Kate Garraway and Ranvir Singh are "on a hen do" as they chat to the fire crews in the street outside.
Ben Shephard (@benshephard) March 25, 2016"Think @kategarraway and @ranvir01 think they're on a hen do! @GMB," he said.
In another video, shot in a nearby cafe, Ben added: "So we have retired in a nearby cafe on the river. This gentleman here has opened up especially for us to give us some coffee and some breakfast."
A spokesman for London Fire Brigade said: "Part of a post room on the first floor was damaged by fire. Around 50 people evacuated the building before the brigade arrived.
"The fire meant that Good Morning Britain was taken off air. The brigade was called at 6.57am. Fire crews from Lambeth, Dowgate and Soho fire stations were at the scene. The cause of the fire is under investigation."
We're glad everyone was ok!