CHICAGO (CBS)– Eight cars were set on fire in an abandoned lot in West Pullman.

Officials said someone entered the fenced-in lot around midnight and started the fire.

About 30 minutes later, a fire started at a private tow yard in Gresham.

Police say 20 to 30 vehicles were set on fire near 88th and Genoa.

No one is in custody for either incident and the arson unit is investigating.