The cause of a fire that destroyed a George Street duplex and damaged another Monday evening remained undetermined Tuesday, according to John Hersh, a Hagerstown fire marshal.
Hersh said he spent several hours at the fire scene at 620-622 George St. Tuesday but would investigate further.
The fire, which is believed to have started at 620 George St., spread to the connecting unit at 622. Heavy winds blew flames toward the neighboring building at 616-618 George St. around 7:30 p.m.
Nine people were left homeless in the blaze, which took firefighters from 22 area companies about two hours to extinguish. No one was injured in the fire.
Flames damaged the roof of 616-618 George St. and the building sustained smoke and water damage, firefighters said.
Hersh said he will examine the rear of 620-622 George St., where the roof, attic and second story collapsed.
If he concludes his investigation after that, the condemned 620-622 George St., will be torn down immediately.