Melania Geymonat says the men made sexual gestures and demanded they kiss before assaulting and robbing them on a London bus.
Find out which European cities are introducing eco-friendly initiatives to transform transport in urban spaces.
UberShuttle operates in other cities, such as Cairo, Egypt, but this is believed to be its first launch in Europe.
Luxembourg is to become the first country in the world to scrap fares on all public transport.
A man has been jailed and fines after slapping a woman's bottom on a bus in Paris and making lewd remarks
At least 50 people, including 12 children, were among the injured on Monday.
29 children were on board the bus at the time.