Portugal and Uruguay's Group H match at the World Cup was interrupted by a pitch invader carrying a rainbow flag at the Lusail Stadium.
Just over five minutes into the second half, the individual in question forced a brief stoppage in the game after taking to the field.
The invader, who was also wearing a shirt with the Superman logo, also sported the messages "Save Ukraine" and "Respect for Iranian Women".
He was subsequently removed by security, while Iranian referee Alireza Faghani removed the flag in question.
The pitch invader's actions are the latest protest at Qatar 2022, where LGBTQ+ rights are heavily restricted in the host nation.
A planned show of solidarity with the OneLove armband from European teams was effectively forced down by FIFA, with Germany subsequently protesting ahead of their match with Japan with a covered mouth gesture.
The protest also makes reference to the ongoing Russia-Ukraine war and continued demonstrations in Iran over the subject of women's rights.
Portugal and Uruguay play their final Group H games against South Korea and Ghana on December 2.