Columbus, OH (April 21, 2026) – An electrical vault fire led to multiple injuries at a building on W Long St in downtown Columbus. The incident happened on Tuesday, April 21, when heavy smoke quickly spread through the former YMCA property.
Emergency units were dispatched to 40 W Long St shortly after 9 a.m. after reports of a fire inside an electrical vault. The vault was located near an elevator shaft, allowing smoke to rise rapidly through several floors. While crews were working inside, an underground transformer exploded, filling the structure with thick black smoke.
A total of 10 people were taken to nearby hospitals, including six firefighters who were exposed while putting on breathing gear. All were reported in stable condition. One person inside the building was on the seventh floor when the fire began and was later rescued from scaffolding on the fourth floor.
Officials said smoke damage was found throughout much of the building, and crews remained on site for several hours to clear the air. The cause of the fire has not yet been determined. Authorities continue to investigate the cause of the incident, and more details will be released as they become available. Our thoughts are with the injured victims as they continue to recover.
How Electrical Vault Fires Can Affect Buildings and Occupants
Electrical vault fires can spread smoke quickly, especially in multi-story buildings. These vaults often house transformers and wiring systems that, when damaged, can produce thick smoke and heat. If the vault is located near vertical spaces, like elevator shafts, smoke can travel upward quickly.
People inside buildings may not always see flames, but smoke can still create dangerous conditions. Breathing in smoke, even briefly, may cause symptoms such as dizziness, coughing, or trouble breathing. This is why quick evacuation and access to fresh air can make a difference.
In some cases, people may need assistance leaving upper floors, especially if visibility is low. Buildings with older electrical systems may also face a higher risk of this type of incident, particularly if equipment is not regularly inspected or maintained.
