(KMOV) -- Washington Park Firefighters suspect the person responsible for setting multiple house fires may have struck again.
The most recent house fire took place in the 5600 block of Hallows Street in Washington Park, Illinois.
Firefighters say all the fires break out in vacant homes between the hours of 10 a.m. and 3 a.m. on Sunday, Monday and Tuesdays.
So far about 12 fires have broken out in vacant homes in Washington Park.
Police do not have any information on a possible suspect at this time.