Instagram is awash with hardcore porn videos despite being aimed at children as young as 13, The Sun can reveal.
The popular image-sharing app has a strict "zero tolerance" policy on sexual content – but has failed to crack down on porn hashtags that help users find smut online.
The Sun tracked down more than a dozen different hashtags that lead directly to smut.
Typical Instagram users add innocent hashtags – like #dog or #food – to their posts, so that others can search for them more easily.