The United States has used its largest non-nuclear bomb ever deployed in combat, killing at least 36 militants in Afghanistan. <br />The Massive Ordnance Air Blast (MOAB), which is also known as the "mother of all bombs", was dropped on a deep tunnel complex in eastern Nangarhar Province near the Pakistani border. <br />The US says the tunnels were being used by fighters aligned to the so-called Islamic State group.
