Primary investigations into the blast revealed that the ammonium nitrate stored since 2014 in a warehouse at the port caused the explosions, which killed over 200 people and injured more than 6,000 others.

对爆炸的初步调查显示，自 2014 年以来储存在港口一个仓库中的硝酸铵引起了爆炸，爆炸造成 200 多人死亡，6000 多人受伤。