Iran’s powerful Revolutionary Guard on Monday unleashed a wave of drone strikes and artillery, targeting what Tehran says are bases of Iranian Kurdish separatists in northern Iraq, a semi-official news agency reported.

It was the second such cross-border assault since the weekend, at a time when Iran is convulsing with protests over the death of a 22-year-old Iranian Kurdish woman who was been detained by the nation’s morality police.

On Saturday, the Guard said it targeted bases and training camps of Kurdish separatist groups in northern Iraq, claiming it inflicted serious damage. Protests over the death of Mahsa Amini have spread across at least 46 cities, towns and villages.

Iranian state TV has suggested that at least 41protesters and police have been killed since the protests began on September 17. An Associated Press count of official statements by authorities tallied at least 13 dead, with more than 1,200 demonstrators arrested.

In Monday’s report, the Tasnim news agency said the Guard’s attacks were in response to the support that the separatists have allegedly provided for the unrest inside Iran, as well as their attempts to smuggle in weapons.