An armed attack by the Sunni Jaish al-Adl Baluch group on a courthouse in Iran’s restive southeastern Sistan-Baluchestan province killed at least nine people and injured 22 on Saturday, Iranian media reported.

Three assailants were also killed in the ensuing clashes with security forces, a senior police official told the state news agency IRNA.

The militants targeted people at the location indiscriminately, an eyewitnesses reported.

Sistan-Baluchestan is home to Iran’s Sunni Muslim Baluch minority, who have long complained of economic marginalization and political exclusion.