.Fars News Agency, affiliated with the Islamic Revolutionary Guard Corps, said gunmen stormed the judiciary building in the restive Sistan and Baluchestan province and opened fire, first targeting court offices and then shooting at civilians outside.

Security personnel helped court staff and visitors leave the area as gunfire and an explosion were heard from inside the building, Fars said. The cause of the explosion has not been announced. Local speculation pointed to a possible suicide bomber, though this remains unverified.

According to the rights group Haalvsh, the attackers entered through Azadi Street and directly targeted the judges’ offices. Eyewitnesses said several judiciary employees and security forces were hit. The area remains under tight lockdown.