COLUMBUS, Ohio (CBS Cleveland/AP) — Authorities say a 3-year-old boy died when he pushed a handle and tumbled out the back door of a car and then fell under its back wheels while his mother was driving.

Deputy Steve Fickenworth of the Franklin County Sheriff’s Office says 23-year-old Sarah Hammond was turning at an intersection when the accident occurred in Hamilton Township on Monday evening. Fickenworth says 3-year-old Logan McClaskey died at the scene.

The deputy says the child had been buckled into a booster seat behind the driver’s seat. He said the boy unbuckled the seat belt and pushed the door handle, and the door opened as the car made a right turn.

Fickenworth said the four-door sedan had child locks that weren’t being used at the time.

A Columbus Public Health spokesperson says the toddler should have been harnessed in something more secure than a booster seat.

“He was only 3, so we would recommend that he is in a higher weight harness for a 3-year-old because maturity-wise, they’re not mature enough to sit in a booster seat,” Columbus Public Health spokesperson Ann Roderer told WCMH-TV. “They need that internal harness still and there are seats out there with that internal harness that will go to 60 or 65 pounds.”

A funeral will be held for the boy Thursday.

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