A three-alarm fire tore through a pair of wood-framed structures in Woodbury late Saturday night, fire officials said.
Firefighters got the first call at 9:04 p.m., alerting them to the fire at a home at 41 Pheasant Lane, officials said.
The flames quickly spread to a two-story home next door, fire officials said. As many as four homes were destroyed in the blaze and 15 people were displaced, officials said.
More than 19 fire departments and about 100 firefighters responded to the blaze, officials said. Among the departments were Syosset, Plainview, Melville, Bethpage, Huntington Manor, Jericho, Hicksville, Westbury, Huntington and South Oyster Bay.
The fire was knocked down in about 90 minutes, officials said.
No one was hurt in the blaze, officials said.
Investigators do not yet know where the fire started and are trying to determine its cause, officials said.
It is not believed to be suspicious.