Iran’s hardline judiciary has indicted 11 people over the killing of a Basij security force member during unrest, state media reported on Saturday, as authorities sought to quell nine weeks of protests.

State news agency IRNA said some of the 10 men and one woman were charged with “corruption on earth”, which can be punishable by death, for crimes that led to the death of a member of the pro-government Basij volunteer militia on Nov. 3 in Karaj near Tehran.

The protests ignited by Mahsa Amini’s death in the custody of morality police after her arrest for “inappropriate attire” mark one of the boldest challenges to the Islamic Republic since the 1979 revolution. Woman have played a prominent role, waving and burning headscarves enforced under strict dress codes.

Videos posted on social media purportedly showed the national basketball team refraining from singing the national anthem during a match with China in Tehran on Friday - widely seen as another show of support from athletes for the protests.

The activist HRANA news agency said 336 protesters had been killed in the unrest as of Friday, including 52 minors. Thirty-nine members of the security forces had also been killed, while nearly 15,100 have been detained, it said.

The widely-followed 1500tasvir Twitter account posted a video it said was from overnight protests in the Caspian Sea coastal town of Babolsar, showing petrol bombs thrown at a Basij base which is covered by pro-government banners.

HRANA posted videos purporting to show shopkeepers striking in the northwestern town of Sardasht and the city of Saqez, Amini's hometown. Another video showed what it said were student protests in the northern city of Babol.

Norway-based Iran Human Rights posted videos it said showed protests and sit-ins at three university campuses in Tehran and one in Karaj on Saturday.

Reuters could not independently verify the videos.

The Iranian government has condemned the protests as riots fomented by adversaries including the United States, and has accused armed separatist groups of perpetrating violence.

UN experts have urged Iran “to stop using the death penalty as a tool to squash protests”, noting that charges carrying the death penalty were brought against eight people in Tehran on Oct. 29.

Iranians from all walks of life have taken part in protests, with opponents of the government heartened by what they have seen as a series of shows of support from Iranian athletes.

Earlier this week, videos posted on social media showed the national water polo team failing to sing the national anthem at a competition in Thailand.