Multiple people were displaced Monday evening after a house caught fire in Louisville's California neighborhood.
Arson investigators determined the cause of the fire was smoking while using oxygen.
A man safely escaped before crews arrived, and the fire was quickly contained as investigators work to determine the cause.
The fire at the apartment complex off Tazwell Drive caused about $100,000 in damage.
It took 36 firefighters operating from multiple different trucks and two battalion chiefs almost an hour to gain control of the fire.
No one was injured after a fire broke out near Central High School on Tuesday evening.
One person was displaced after a fire broke out at a home in east Louisville early Sunday morning.
Two vacant homes caught fire in the Russell neighborhood Tuesday evening, according to Louisville Fire.
Two of the 14 apartment units had moderate damage.