Four were injured and one died after a car hit a sports centre in Thônex in Geneva on Saturday morning.
Police say the 80-year-old driver didn’t survive her injuries.
The injured included two five-year-olds – who are in a critical condition – one other child and an adult were also hurt.
The car careered into the sports centre through the entrance and ended up in the hallway, shortly after a basketball lesson had ended.
An investigation is ongoing.