London: Anyone found guilty of repeatedly posting "revenge porn" or releasing victims' contact details will face the harshest possible punishment under new sentencing guidelines in Britain.

"Revenge porn" - sharing private sexual images or videos without consent and with the intention of causing distress - was made an offence in 2015 under a law that allows for a maximum sentence of two years in prison.

There were 465 prosecutions in Britain in 2016/17, up from 205 in the previous year.