CNN is reporting that the United States military has dropped a more than 21,000 pound bomb in Afghanistan.

According to the CNN report, the bomb, a Massive Ordnance Air Blast Bomb, nicknamed MOAB, or "The Mother of All Bombs," was dropped at 7PM local time on April 13, on what was believed to be an ISIS complex in tunnels and caves in the Nangarhar province.

No casualty estimates have been released. It is believed this is the first time the US has deployed this weapon on the battlefield.

NBC News had more in the following video.