Workers clinging to scaffolding rescued after building explosion Two workers were trapped on scaffolding hanging from the side of Baltimore's BGE building after an explosion. Share Updated: 2:01 PM PST Mar 5, 2021 Troy Frisby Workers clinging to scaffolding rescued after building explosion Two workers were trapped on scaffolding hanging from the side of Baltimore's BGE building after an explosion. Share Updated: 2:01 PM PST Mar 5, 2021 Hide Transcript Show Transcript a blast in Baltimore, left to workers dangling from scaffolding on the side of a building for more than an hour, it was leaving louder than a gun. It was It was an explosion. The explosion at the B G building was so loud it could be heard throughout the city's downtown area. Mhm pretty loud. One big boom. The workers on the scaffolding were cleaning the windows at the time of the explosion. Their harnesses kept them tethered to the building. But it took more than an hour before the Baltimore Fire Department got them down. One of the individuals they were able to pull through pretty pretty easily on the 10th floor. The other one our members are one of our members had to step out on the scalpel, climb up the scalpel and bring them through the 11th floor. A total of 23 people had to be rescued. Nine of the people hurt in the blast suffered critical injuries. The building was otherwise empty because of the Covid 19 pandemic and the holidays. Officials said. Construction work on the building's air handling and boiler system was likely partially to blame for the blast, but natural gas was not a factor. Construction crews were in there working, upgrading systems in the building. And it was. It does appear that something occurred on around the 16th floor of the building, which is largely infrastructure. Six floors were left in need of significant repairs, and the roof partially collapsed as well.