A 15-year-old Iranian girl died last week after being beaten during a raid by the security forces on her school, a teachers’ union said, urging the authorities to stop killing “innocent” protesters.

Asra Panahi died on October 13, after plainclothes officers attacked Shahed High School in the northwestern city of Ardabil, the Co-ordinating Council of Teachers Syndicates said.

The pupils had been taken into town for an ideological event at a spot known to be a centre for protests sparked by Mahsa Amini’s death in the custody of Iran’s notorious morality police.

The death of the 22-year-old Amini, after her arrest for allegedly breaching Iran’s strict dress code for women, has fuelled the biggest protests seen in the country for years.

In its statement issued on Tuesday, the teachers’ union slammed the school’s decision to get pupils involved in the ideological event without the consent of their parents.