British Prime Minister Theresa May’s ethics watchdog is calling on the government to introduce laws that would shift the liability for child sex abuse material onto web companies. According to the report by Britain’s Committee on Standards in Public Life, internet companies that fail to monitor and take down such content should be prosecuted.

The recommendation aligns with what anti-trafficking campaigners say is a rapid growth in children being sold for sex online, from the UK to the Philippines.

Thomson Reuters Foundation reports that the debate lies in how far companies need to go in order to remove user content that is illegal and if they should be liable for not taking it down:

“Internet service providers, are increasingly finding their … platforms as vulnerable mediums for exploitation and abuse,” David Westlake, head of anti-slavery group International Justice Mission UK, told the Thomson Reuters Foundation.

Twitter said in a statement it had cut abusive content and that, each day, it now acted on 10 times the number of abusive accounts compared to this time last year. YouTube declined to comment, while Facebook did not immediately respond to requests for comment.

“There is a debate to be had about the extent of control companies should exercise over what is posted on their platforms,” said Jakub Sobik of Anti-Slavery International. “(But) they shouldn’t just be able to sit back and allow content constituting child sexual abuse on their sites.”

Earlier this month, British police arrested 200 people on suspicion of child sex crimes including the live streaming of sex abuse. The operation saved 245 children from harm.