Fireworks, ammonium nitrate likely fueled Beirut explosion

Fireworks and ammonium nitrate appear to have been the fuel that ignited a massive explosion that rocked the Lebanese capital of Beirut, experts and videos of the blast suggest.

The scale of the damage — from the epicenter of the explosion at the port of Beirut to the windows blown out kilometers (miles) away — resembles other blasts involving the chemical compound commonly used as an agricultural fertilizer.