A 41-year-old Finnish man was hospitalised on Sunday after he was hit by a car while riding an e-scooter, which left the scene without stopping.
Police told Times of Malta that the accident took place on Mdina Road, near Birkirkara at 11.30 am.
The rider was seriously injured.
A man later uploaded a video on social media saying that a "white Toyota Belta" had driven away after hitting the rider, leaving him injured. He said the police had been given the details.
Police could not confirm reports that the e-scooter was crossing the road when the accident happened. A magisterial inquiry is being held.
The accident came days after Times of Malta reported that the mandatory wearing of helmets, lower speed limits, and a ban in pedestrian areas are among the proposals government is considering as part of an e-scooter crackdown.
Transport Malta is to hold talks with e-scooter companies and the Malta Insurance Association in the coming weeks.