Children are at increased risk of being harassed, cyber-bullied and having their identities stolen in later life by having their photos posted online by parents, according to new research.

So-called "sharenting" - documenting a child's special moments on social media - has become commonplace, but academics now warn this could come with unexpected risks.

University of Southampton researchers said their findings indicated it increased the risk of children becoming the victims of cyber-crime.

"These findings highlight the serious risks which children can face when photos and videos of them are shared widely on social media," the NSPCC child safety online policy manager Rani Govender told the BBC.

"Sharing photos or videos of children at scale across the online world can put their safety, privacy and wellbeing at risk," she said.