The first one was reported about 5:40 p.m. at a two story apartment unit and attached garage on Chester Avenue and Corson Street, according to officials.
Only a couple of minutes away, another fire broke out in a residential building at Holliston Avenue and Corson. The two left major damages to the houses but no injuries were reported.
Two more fires ignited on Locust Street and Walnut Street, resulting in minor damage. No further details were available at this time as the investigation is still on its early stage. Anyone with information can contact the city's police department at (626) 744-4501.