A man reportedly tried to steal a car in Dover while a nine-year-old boy was in it.
Police called to a report of a disturbance in Dover Road, Whitfield, Kent at 7.42am today.
A man in 50s is reported to have entered a stationary vehicle with the child inside.
He is then said to have been restrained by some members of the public while police were called.
Officers arrived at the scene and arrested a man in his 50s on suspicion of attempting to steal a motor vehicle.
Enquiries are ongoing and the man remains in custody.