Portsmouth City Council set up 100 rental e-scooters across the city in a six-month test run with a pay-as-you-go or subscription service.
But on the first day of the trial, a woman came out in an incident on Clarence Esplanade across from the D-Day Story Museum.
Ambulances and police vehicles soon arrived as caring members of the public stopped to help.
register to our daily newsletter
The i newsletter Cut through the noise
The incident happened this afternoon. Image: Trevor Goodman
E-scooter test starts in Portsmouth – this is how it will work
The woman is not believed to be seriously injured, although this has not yet been confirmed.
Unlocking the e-scooters costs £ 1 and then 20p per minute. 24 hour and 30 day subscriptions are available.
Users must be 18 years of age and have at least a provisional driver’s license to use the vehicles, which are limited to 10 mph.
Cllr Lynne Stagg, Cabinet Member for Transport, started the process yesterday.
She said, “I’m sorry to hear today that there was an incident involving a rental e-scooter.
“We asked Voi to investigate what happened and continue to promote safe driving. We have worked closely with Voi to make the e-scooter trial version as safe as possible. Only those aged 18 and over with at least a provisional license can drive, speed limits and geofencing technology to create no-go zones and 8 km / h slow zones.
“We will await the results of Vois’ investigation into the incident.”
Comment was requested from the South Central Ambulance Service.