The Imam at a mosque in northern Afghanistan had just led his congregation in a chorus of "Allahu Akhbar" (God is Greatest), said Abbas in his hospital bed at the Azizullah Safar Regional Hospital in Kunduz, when he heard a "terrible sound" and was knocked to the ground. Now the 24-year-old knows that a suicide attacker had detonated his bomb, ripping through the crowd during Friday prayers, instantly killing dozens of Shiite worshippers at the Gozar-e-Sayed mosque. The blast, which killed about 100 Shiite muslims according to locals, is the latest in a string of attacks on Afghanistan's minority community, who are branded heretics by Sunni Muslim extremists like the Islamic State-Khorasan (IS-K) group, which claimed the attack. IMAGES AND SOUNDBITES