蜜芽传媒

Crime on the Tube has risen by more than 50% in a year, including a substantial increase in robberies and thefts.

According to the latest data from Transport for London (TfL), offences are up 30% across all services.

On the Underground there was an 83% increase in thefts while robberies more than doubled, even though passenger numbers fell.

TfL said it was working closely with police to address current concerns. The Mayor said the rise was partly down to an increase in passenger numbers.

So why has crime risen so dramatically?

蜜芽传媒 Radio London's Salma El-Wardany has the story.