Hadid shared a photo of her father’s expired American passport on Tuesday, which lists his place of birth as “Palestine.” The picture, posted to Hadid’s story and accompanied with the text “I am proud to be Palestinian,” was soon removed by Instagram.

“Exactly what part of me being proud of my father’s place of Palestine is ‘bullying, harassment, graphic, or sexual nudity’?” she asked. “Are we not allowed to be Palestinian on Instagram? This, to me, is bullying.”

“You can’t erase history by silencing people,” she added. “It doesn’t work like that.”

Hadid is certainly not one to be silenced on the issue of her ancestral homeland. The supermodel regularly posts about Palestine and drew cheers from fans in 2017 when she joined a protest march in London against US President Donald Trump’s decision to recognize Jerusalem as Israel’s capital. Marching in a red party dress, Hadid later said that “the treatment of the Palestinian people is unfair, one-sided and should not be tolerated.”

It is not clear why Instagram removed her latest post. However, the platform prohibits the sharing of photos that users don’t “have the right to share.” Someone else’s passport photo, even Hadid’s own father’s, could have broken this rule. Instagram uses artificial intelligence to flag posts as offensive or inappropriate, and this method has been criticized before for censoring legitimate content.

Instagram is not the only social media company to apply its content-filtering technology in a seemingly haphazard way. Nor is it the first to face criticism for doing so. Conservatives in the US have hammered Facebook and Twitter for removing their posts and banning their profiles, with Facebook CEO Mark Zuckerberg hauled before Congress in 2018 to answer accusations of bias.