Hamas militants have used an inverted red triangle to mark military targets. Pro-Palestinian protesters have also used it to vandalize homes.

Antisemitic vandals who defaced the Brooklyn Museum director's co-op Tuesday night painted a red triangle on the front door — a symbol that has been widely used in Hamas propaganda showing ...

Meta has deemed the inverted red triangle (and its accompanying emoji) a proxy for pro-Hamas support, and is enforcing its removal on platforms like Facebook, Instagram, and WhatsApp.

The upside-down triangle is used by Hamas to mark targets and has been adopted by their supporters to urge violence toward Jews and Israelis.

Nazis Put This Symbol on Political Opponents’ Arms. Now Trump is Using It. The upside down red triangle was used in Hitler’s concentration camps.

The identical ads featured an upside-down red triangle, a symbol used by the Nazi party in World War II to identify political dissidents in concentration camps.

Facebook removes Trump ads over Nazi-like red triangle symbol Facebook took down ads on President Trump's pages Thursday featuring a symbol identical to one used by Nazis to designate political ...

The ads showed a red inverted triangle with text asking Facebook users to sign a petition against antifa, a loosely organized anti-fascist movement.