Fire officials say flames that displaced three people at a Waipahu apartment complex now appears to be intentionally set.

The fire began on the top floor of a two-story building on Aniani Place just after 6 p.m. Wednesday.

The blaze started in the back bedroom of the corner unit with clothing and a mattress, according to investigators.

Fire officials say only three units were occupied at the time while the other five were boarded up for renovations.

The three adults who lived inside were able to escape safely.  One woman was treated and released for smoke inhalation, according to fire officials.

Police are looking for information that would help in this case.  You can call CrimeStoppers at 955-8300.

Damage is estimated at $280,000.