(Updates with TikTok's response in the fourth paragraph.)

Meta Platforms (META), X, and TikTok will be investigated by Spanish prosecutors over the alleged spread of artificial intelligence-generated child sexual abuse material, Spain's Prime Minister Pedro Sanchez said Tuesday.

In a social media post on X, Sanchez said online platforms were undermining children's mental health, dignity and rights.

Local authorities would ask prosecutors to examine potential crimes linked to the creation and dissemination of illegal content using AI on the platforms, Reuters reported.

A TikTok spokesperson denied the allegations saying, "CSAM is abhorrent and categorically prohibited on our platform. TikTok has robust systems in place to thwart attempts to exploit or harm young people, and we continue to prioritize and invest in advanced technologies to stay one step ahead of bad actors."

Meta did not respond to MT Newswires' request for comment.