Employees at a hedge fund building in Stamford returned to work Monday after a weekend fire.
It happened Saturday morning at the Point 72 Asset Management building on Cummings Point Road.
Fire officials say the flames broke out while crews were working on an air conditioning unit.
Officials say two of those workers were treated at the hospital for smoke inhalation.
Witnesses could see the heavy smoke throughout the city, but firefighters say they were able to contain the blaze that morning.