The incident happened just before 5:40 p.m. inside Macy’s, according to Crabtree Valley Mall spokesman Brian Asbill.
Asbill said “a small fire” broke out and caused the sprinkler system to deploy.
Raleigh fire officials said the blaze broke out in the upstairs men’s fitting room.
The sprinklers then extinguished the fire, Asbill said.
Raleigh fire officials said 25% of the building was damaged and that the cause was “incendiary,” although they did not explain further the fire’s cause.
Officials said 35 firefighters responded to the incident.
No one was injured.
Friday evening, crews were cleaning up merchandise damaged by water, Asbill said.
