Investigators say they are looking into five fires that were intentionally set in the same area of Charlotte, N.C.
Fire department spokesman Rob Brisley says the fires started at around 4 a.m. Sunday and were set throughout the morning.
Brisley says the worst fire was at a tire store. Firefighters worked for about 30 minutes to put out the fire, which caused about $30,000 in damage.
Officials say two other fires were set inside a dumpster behind Waddell High School.
Investigators are looking at surveillance video from the school and nearby businesses to get clues about how the fires started.