SACO — Two seaside condos were destroyed in a fire early Thursday morning in Saco.

Firefighters responded to a residential fire alarm at 1:30 a.m. Thursday at the Baywood Colony condominium complex at 311 Seaside Ave.

Crews were halfway to the scene when they were told there was a fire in a two-unit condominium building, reported by a neighbor, said Saco Fire Chief John Duross.

On arrival, crews discovered heavy fire on the second floor of the building burning up through the roof, said Duross.

Around 8:30 a.m. firefighters were still working to put out hot spots.

Firefighters faced some challenging conditions, including single-digit weather, winds and ice as they battled the fire, Duross said. A few firefighters slipped and fell at the scene, but there were no reported injuries.

“The guys did a really great job under the harsh weather conditions,” said Duross.

The condominium units were unoccupied at the time of the fire, he said.

The fire is under investigation, but not considered suspicious, said Duross. The State Fire Marshal’s Office will assist in the investigation.

Fire departments that helped came from Biddeford, Old Orchard Beach, Goodwins Mills and Scarborough, said Duross.

The Saco School Department reported on Facebook that one of their buses was on site early in the morning as a warming station for firefighters in the bitter cold.

The Baywood Colony overlooks the ocean, and is located by Bay View Beach.

Seaside Avenue was closed to traffic for several hours Thursday morning.

— Liz Gotthelf can be reached at 780-9015 or  by email at [email protected].