A county sheriff’s officer in Illinois is being investigated for allegedly pulling over a school bus to deliver lunch to his son onboard.

According to the Chicago Tribune, Lt. Brian Keller has been accused in a police report of using the emergency lights on his unmarked black Dodge Charger to conduct the traffic stop of the school bus about 7 a.m. on Nov 12.

The report indicates that the bus was en route to a school in Johnsburg, about 60 miles north of Chicago. Johnsburg is in McHenry County and Keller works for the Lake County Sheriff’s Office, meaning the bus would have been outside of his jurisdiction at the time of the stop.

The bus driver filed a police report with the Johnsburg police.

"The apparent purpose of the stop was to issue his son his lunch for the day," according to the Johnsburg police report. "The complainant was advised that documentation would be made, however, she needed to contact (the Lake County Sheriff's Office) regarding the incident."

The Chicago Tribune talked Lake County Sheriff’s officials who said the complaint is being investigated.