A Cumbria Police spokesman said: “The bus station has now reopened.
“No one has been injured in the incident.
“The fire service are in attendance assessing the building and Cumbria County Council have also been contacted.”
A Cumbria Fire and Rescue Service spokesman said: “At 13:50 hours two fire engines and the aerial ladder platform attended a dangerous structure on Earls Lane Carlisle.
“Firefighters made The structure safe using the aerial ladder platform and then handed it over to building inspectors.”