FBI probe shows amount of chemicals in Beirut blast was a fraction of original shipment

The amount of ammonium nitrate that blew up at Beirut port last year was one fifth of the shipment unloaded there in 2013, the FBI concluded after the blast, adding to suspicions that much of the cargo had gone missing.

As the first anniversary approaches on Aug. 4, major questions remain unanswered, including how a huge quantity of ammonium nitrate - which can be used to make fertiliser or bombs - was left unsafely stored in a capital city for years. The blast was one of the largest non-nuclear explosions ever recorded, killing more than 200 people, wounding thousands, and devastating swathes of Beirut.