A US judge in New Mexico has ordered Meta to pay another $567m (£421m) for its failure to warn the public about dangers its platforms posed to children, marking the largest fine against the company over child safety. Judge Bryan Biedscheid said the social media giant is a "public nuisance" akin to air pollution and that it must put the money in a fund aimed at reducing future harms.

Thursday's ruling is in addition to $375m in fines Meta was already ordered to pay in the case, for a total of $942m. "" We work hard to keep people safe on our platforms and have been transparent about the challenges of identifying and removing bad actors and harmful content," they added."

We remain confident in our record of protecting teens online and will continue to defend ourselves against claims that misrepresent the facts." Regarding the earlier $375m verdict in the case, Meta had said it intended to appeal the ruling and gave a similar explanation.

It was the first time that a state had successfully sued Meta over child safety issues. Meta is currently facing thousands of lawsuits in the US over similar issues.

In addition to the New Mexico rulings, Meta earlier this year lost a landmark case in Los Angeles which found it could be held liable for building addictive platforms. Bruce Daisley, a former European vice president of Twitter (now X), told BBC Radio 4's Today programme the New Mexico fine, while large, was "a drop in the ocean" for Meta.

In its latest financial results, the social media giant posted $61bn in revenue from April to June - up 28% on the same period a year ago." But it's an indication that we are moving to a stage where social media is going to be tackled around the world," he said.

Meanwhile, former safeguarding minister Jess Phillips told Today she believed US court challenges against big tech could enable the UK to take tougher action - without fearing it may damage UK-US diplomatic ties. The fund that Meta has been ordered to create will be used to pay for efforts to mitigate "the wide-ranging impacts of the harm", Judge Biedscheid said.

A vast majority of the money, totaling $420m, will go towards treatment of harms Meta's platforms have already caused, through the funding of "appropriate clinical or other behavioral health programs and professionals," according to the order. Another chunk of the money will go towards training around awareness and prevention, including for teachers and health professionals on how to deal with social media harms against children.