Watch: MOAB makes impact against ISIS tunnels in Afghanistan

Video released by the Pentagon on Friday showed the “Mother of all Bombs” plummeting from the sky and exploding in eastern Afghanistan, as military officials said it flattened a cave-and-tunnel complex controlled by the Islamic State terror group.

The Department of Defense released the video Friday, less than a day after it dropped the GBU-43/B Massive Ordnance Air Blast (MOAB) atop the Achin district of Nangarhar province, which is close to the Afghan-Pakistan border. Officials said 39 ISIS fighters were killed.

In the 30-second video, the 21,000-pound bomb – the largest non-nuclear weapon in the US military arsenal – could be seen dropping before it exploded mid-air. Smoke quickly rose from the impact zone, which officials said was more than a mile wide.

The U.S. military headquarters in Kabul said in a statement that the bomb was dropped at 7:32 p.m. local time Thursday.

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