Officials say an explosion and fire in Freeport damaged multiple businesses overnight and injured five firefighters.

Around 100 firefighters worked through the night on Guy Lombardo Avenue in Freeport as a brick building burned from the inside. Authorities say the fire broke out around 12:30 a.m.

Three businesses were completely destroyed, including Duryea' Flower Shop— which Suzzanne Serino has co-owned since the 1980s.

The florist was a long-time fixture in Freeport, operating in the village since the 1930s.

Families flocked to its windows where elaborate holiday displays celebrated different seasons.

Jim Koehler, who is now 68 years old, says he's been shopping at Duryea's since he was a teenager.

"We've lost an institution in this town that's been around a long time," he says.

The inside of the building was completely gutted. Nothing but charred wood, ash and mangled metal was left behind.

Officials with the Nassau Fire Marshal's office say the flames appear to have started in the florist, and then spread to the rest of the building from there.

When fire crews first got to the scene, a backdraft explosion shattered the windows and sent glass and other debris flying.

A total of five firefighters were hurt. Two of them were hospitalized, though officials say none of the injuries were serious.

"Some of them received facial injuries. We had a firefighter with a broken finger, another firefighter with heat exhaustion and another firefighter with a minor knee injury,” says Ray Maguire, the executive director of the Freeport Fire Department.

As workers put boards over the building, Serino says she is left picking up the pieces of her life's work.

The cause is unknown, but officials say the fire does not appear to be suspicious.