Social media platform X has shut down hundreds of accounts linked to Hamas and has taken steps to remove or post warnings on tens of thousands of posts since the militant group’s attack on Israel, the platform’s chief executive, Linda Yaccarino, said Thursday.

The platform took these actions after the 24-hour ultimatum issued by the head of the European Union for industry, Thierry Breton to the owner of the X platform, Elon Musk to stop the spread of misinformation on this social media since Hamas attacked Israel, to respect the rules of EU news about online content.

Mr Brenton said there were signs that the X platform was being used to distribute illegal content and disinformation in the European Union.

The recently implemented Digital Services Act forces major online platforms, including Platform X and Facebook, to remove illegal content and take measures to address risks to security and public expression.

According to Ms. Yaccarino, the X platform has allocated resources and focused teams within it to handle the rapidly developing situation, but gave no other details. She added that the company, owned by Mr. Musk, has gathered executives to assess the situation created shortly after the attack.

“We want to reiterate that we welcome continued engagement with you and your team, including meetings, to address any concrete questions and we welcome any specific issues to which we can respond,” Ms. Yaccarino wrote in the letter to Mr. Breton, shared on X .

Platform X has handled more than 80 requests from the EU to remove content from social media within the deadline and has not received any warnings from Europol about illegal content on the platform, according to the letter.

Mr Breton issued a similar warning to Facebook-owned company Meta, giving it 24 hours to notify him of measures it has taken to counter the spread of misinformation on its platforms following the attack in Israel.