Crews at the scene of business fire in Baltimore

Fire crews are at the scene of a dwelling fire at the Double Envelope Factory on 520 East 26th Street in Baltimore.

A woman working inside just told me she thinks everyone got out safe. Working to get confirmation from fire officials. pic.twitter.com/XAHsAmD1uk

— Eddie Kadhim (@EddieKadhimWMAR) February 6, 2018

Crews say although the "U-shape" of the building made it very difficult for firefighters to control the fire inside the building, they were able to contain it to one machine.

Firefighters told ABC2 that the suppression system inside the building worked properly and made it easy to fight the fire once they arrived at the scene.

All of the workers were able to make it out of the building safely.