Some bios containing the word "Palestinian" followed by the Palestinian flag emoji and the Arabic phrase "Alhamdulillah," which means "Praise be to God", were being auto-translated to: "Praise be to God, Palestinian terrorists are fighting for their freedom."

The issue was brought to attention by TikTok user ytkingkhan, who tested the phrase on his Instagram account.

He later tested it again and found it translated to: "Palestinian terrorists [Palestinian flag emoji] Praise be to Allah."

In a statement, Meta said: "We fixed a problem that briefly caused inappropriate Arabic translations in some of our products.

"We sincerely apologise that this happened."

In a blog post on Wednesday, Meta - which owns Facebook and Instagram - said it had introduced several measures since the Israel-Hamas war began "to address the spike in harmful and potentially harmful content spreading on our platforms".

It said there was "no truth to the suggestion that we are deliberately suppressing [anyone's] voice".

The company said content containing praise for Hamas, which it designates a "dangerous organisation", or violent and graphic content is not allowed on its platforms - but conceded it "can make errors" and urged anyone who thought it had made a wrong decision to use its appeals process.

It also said it had fixed a bug which prevented re-shared reels and feed posts from showing up properly in people's Instagram stories, "leading to significantly reduced reach" - but said the issue was not just related to posts about Israel and Gaza.

It comes as the European Union demanded TikTok and Meta explain the measures they have taken to reduce the spreading and amplifying terrorist and violent content, hate speech and disinformation.

The 27-nation bloc's executive branch, the European Commission, formally requested the social media companies provide information on how they are complying with sweeping new digital rules aimed at cleaning up online platforms.

Photos and videos of death and destruction have flooded social media, alongside posts from users pushing false claims and misrepresenting videos from other events.