South Wales Police are appealing for information after a collision involving a car and an e‑bike on Penarth Road, Cardiff, on Friday evening.
The incident happened at around 7.40pm near Costa Coffee in Freemans Parc.
Two 16‑year‑old boys from Riverside, who are believed to have been riding the e‑bike, were taken to the University Hospital of Wales for treatment.
Police confirmed that two men have been arrested in connection with the collision. No further details about the nature of the arrests have been released at this stage.
Officers are now urging anyone who witnessed the incident, or who may have dashcam, CCTV or mobile phone footage, to come forward and quote reference 2600291128.
Information can be submitted online via the South Wales Police portal, by calling 101, or anonymously through Crimestoppers on 0800 555 111. Members of the public are reminded to call 999 in an emergency.

Former Holm View Leisure Centre could become education and community hub
ScoutsCymru members represent Wales at Royal Albert Hall Festival of Remembrance
Plans for indoor market at former Barry Wilko move forward
Police given additional powers to deal with anti-social behaviour in Barry
Senedd passes supplementary budget with £60m boost for additional learning needs
Future of planned festive events in question after criminal damage to Barry Town Hall
Consultation to open on plans for 35MW solar farm near Penarth
No Trains through the Vale of Glamorgan this Sunday
Police and Cardiff City launch operation to tackle matchday anti-social behaviour
Free leaf and fallen fruit collections return in the Vale
Barry retains Fairtrade Town status until 2029
£1m improvements planned for Pencoedtre Park as splashpad work set to begin
Plan submitted for new independent school on site of well-known charity farm
Is your hot water bottle safe?
Solicitor sentenced for defrauding Cancer Research UK
Cate is crowned champion!
WATCH: Winner of The Voice UK Cate McHugh duets with Sir Tom Jones
Barry filmmaker takes her documentary to the big screen in New York
Pupils leave their mark on new school at steel signing event
£3m refurbishment plans revealed for Cowbridge Town Hall