Founder and chief executive Justine Roberts said five images were posted from two different accounts late on Sunday and into Monday morning, with most removed within an hour and all taken down by 4am.
She told the PA news agency: “As a temporary measure, we have suspended the ability to post images on site and we are working on implementing AI filters to flag illegal/disturbing images before they appear.
Parenting forum Mumsnet has temporarily stopped picture sharing after child sexual abuse images were allegedly posted on its website.
She said the images were reported to the Metropolitan Police and that a follow-up meeting with officers will take place.
“We’re also liaising with external specialists to see if there are any further tools we can employ to help us prevent this from happening again in the future.”.
