A hidden bomb killed 30 Sunni worshipers , and wounded 52 others at a mosque near Baquba , Iraq , on Friday at 1 p.m. , police and health officials said . Bomb was hidden in AC ducts of Sunni mosque . Separate attack kills 4 at different Sunni mosque . On Wednesday a suicide bomber killed 4 at Shiite mosque in Karachi .
Bomb was hidden in AC ducts of Sunni mosque . Separate attack kills 4 at different Sunni mosque . On Wednesday a suicide bomber killed 4 at Shiite mosque in Karachi .