Facebook has apologised after suggesting videos of child sex abuse to users in its search results.
The social media giant said it was "very sorry" after a range of sickening messages showed up in the site's search bar overnight.
Users reported that if they typed the phrase "video of" into the site's search engine, they'd be met with a number of disturbing suggestions involving children.
It's not clear how the messages appeared, news.com.au reported.
"We're very sorry this happened. As soon as we became aware of these offensive predictions we removed them," Facebook said in a statement.