Three Connecticut Light & Power workers were taken to Hartford Hospital to be treated for minor injuries sustained during an incident on Wyllys Street in Hartford on Thursday morning.
Hartford police said the incident appears to be an explosion or accident.
As this was happening, the generator went on at Hartford Hospital.
Hospital officials said an accident on Wyllis Street caused a power surge, leading to one person being stuck in elevator.
The power at the hospital was out for about two minutes, officials said.
According to the CL&P power outage map, there are 310 power outages in Hartford.