A five-year-old girl was accidentally left alone on a train in canton Fribourg after missing her stop on the way to school.
The child was travelling from Montbovon when she was found safe at the next station in Villars-sous-Mont.
Despite being in a supervised group, the incident has raised concerns over supervision procedures.
Authorities say they are reviewing the process, while the girl's father is considering filing a complaint.
Elderly deaths rise during the heatwave
Bars can stay open all night for Quarter-Final clash
Swiss football shirts sell out
Geneva bans forest fires
Twint rival launches
Switzerland through to quarters
