Eight men have been arrested on suspicion of raping a young teenage girl, after dawn raids at several addresses in East London and Hertfordshire.
Five 23-year-olds, two 24-year-olds and one 21-year-old are being held in custody at a police station.
Officers from the Met's Sapphire Command are investigating alleged offences that took place between May and November 2012.
More top news
A man has died after being attacked outside Bethnal Green tube station in front of horrified onlookers
A number of teenagers playing the popular phone game have been targeted by armed robbers in a London park
The victims were playing the popular game in Whittington Park in Holloway on Tuesday night, when three males suspects approached them.