US forces have killed 36 ISIS terrorists after dropping the most powerful non-nuclear bomb ever used in combat on the terror group's network of caves and tunnels in Eastern Afghanistan.


The bomb has been given the nickname the 'mother of all bombs', a play on MOAB which is an acronym standing for Massive Ordnance Air Burst, and weighs a staggering 21,000lbs.

It was dropped at 7.32pm local time Thursday on a tunnel complex in Achin district of Nangarhar province, where the Afghan affiliate of the Islamic State group has been operating close to the Pakistani border.

President Donald Trump called it a 'very, very successful mission' and some Afghan residents have welcomed the blast and even called for more.

The bomb, known officially as a GBU-43B, unleashes 11 tons of explosives and vaporises anything within its 300m blast zone.