Trump’s spokesman Sean Spicer said the US is taking the threat from ISIS “very seriously”.
He said: “In order to defeat the group we must deny them operational space. Which we did.
“The United States took all precautions necessary to prevent civilian casualties and collateral damage as a result of the operation.”
Sources said the bomb dropped is known as an MOAB – mother of all bombs.
The blast zone could stretch up to 300m – military experts say (stock image)
The ginormous missile was too big to release from traditional bomb-bay door or release from an aircraft wing so it was “kicked it out the back door,” an official revealed.
ISIS jihadis are believed to have been taken out.
Map of the area of Afghanistan where the Mother of All Bombs was blasted
The damage is being assessed.
Mr Spicer told reporters MOAB is ‘a large, powerful and accurately delivered weapon’.
He said its mission was to collapse tunnnels used by ISIS terrorists.
The ‘mother of all bombs’ MOAB dropped in Afghanistan (stock image)
However, their tunnels, some big enough to drive cars in, and fitted with air-con and stacked with food, have not been enough to beat coalition-backed forces.