An explosion in a high-rise building in the US has injured 23 people and temporarily trapped a window cleaning crew on dangling scaffolding.
Twenty-one people were taken to hospital following the explosion in Baltimore, which caused a partial roof collapse.
The trapped workers were rescued through a window, and firefighters continued to search the building.
The firefighters’ union tweeted that evidence points to an explosion on the 16th floor of the central building, where the offices of Baltimore Gas and Electric Company are located.
“Window washing scaffolding was compromised because of the incident and a window washing crew was pulled to safety by the fire department,” Ms Weaver said in a statement.
The building was practically empty because of the holidays and the coronavirus pandemic.