Lincolnshire Police confirmed the arrest shortly before 2pm today, following the incident which left a 12-year-old boy with potentially life-changing injuries.
Earlier today, a Lincolnshire Police spokesman said the boy was struck by a vehicle while crossing Grimsby Road, Caistor, at around 9.50pm last night.
It is alleged that the vehicle involved in the collision did not stop at the scene.
If you witnessed the collision, or if you have dash-cam footage or any information which could help the investigation, call Lincolnshire Police on 101 and quote incident number 423 of April 28.
Alternatively, email [email protected] and quote incident number 423 of April 28 in the subject line of your email.
You can also report information anonymously by calling the independent charity CrimeStoppers on 0800 555 111.