A US citizen who raped five teenagers, aged 13 to 16, while living in London after blackmailing them online has been jailed.
Eniola Balogun, 20, persuaded girls through social media websites Snapchat and Instagram to send him intimate photos.
He then threatened to distribute them unless they had sex with him.
Some of the victims were even told to perform sex acts via video on more than one occasion.
And detectives fear there may be even more young victims, who have not been traced, and urged any to come forward.
Balogun, of no fixed address but who had been living with relatives in the Tottenham area of north London, pleaded guilty at Wood Green Crown Court in September to four counts of rape on four separate teenage girls, aged between 13 and 16. He also pleaded guilty to possessing indecent images of a child.
He had been found guilty of a further three counts of rape following an earlier trial at the same court in March. These offences related to a 16-year-old girl.
Balogun was sentenced at Wood Green Crown Court to a total of 21 years' imprisonment.