Officers from the department's patrol division responded to the collision report, and MEDIC transported the boy for treatment of injuries that authorities have not yet described. Police said no one has been charged in connection with the crash.

Lisa Davis, who was driving into the shopping center at the corner of McKee and Siskey just after the crash occurred Sunday evening, said the scale of the emergency response stood out in a town unaccustomed to such scenes.

"It was a lot and so I knew something serious must have happened," Davis said. She shared photos of the response and said she did not witness the cause of the collision. Investigators left markings in the roadway that remained visible afterward.

Davis said children crossing at the intersection is a familiar sight, and she would like the town to install a crosswalk there.

The collision comes as Matthews has moved to tighten oversight of the small electric vehicles that have proliferated on its streets and sidewalks. Earlier this year, the town adopted an updated ordinance defining e-bikes and e-motos and setting rules for their use. Among the provisions: only riders under 16 may operate on sidewalks, and lights are required for nighttime riding.

Matthews police said their central message is directed at parents, urging them to research the devices before buying them for their children and to talk with them about safety.

The boy's condition was not immediately available. The investigation into the crash remains open.