A car’s crash into an after-school camp in central Illinois this week – a wreck that killed four people ages 7 to 18 and injured six other children – does not appear to have been a targeted attack, Illinois State police said Tuesday.

Four people, all of them children or teenagers, were killed and several others were injured on Monday when a car crashed into an after-school center in Chatham, Ill., a village just south of Springfield, the State Police said. The victims are believed to be 18 years and younger, the Illinois State Police Department said in news release.