FBI clarifies data on explosion in Beirut port Aleksej Medvedev 10 https://static.news.ru/photo/8c6b2822-49f5-11eb-a0e1-fa163e074e61_660.jpg Photo: Marwan Naamani/Global Look Press The US Federal Bureau of Investigation (FBI) has revealed new information about the Beirut port explosion, France 24 channel reports referring to former Lebanese Prime Minister Hassan Diab. The FBI found out that the explosion was caused by less ammonium nitrate than previously assumed. The FBI believes that 500 tons of the substance were the cause of the incident and not 2,700 tons. The updated information from the FBI caused bewilderment in the former prime minister. Diab wondered where 2,200 tons of ammonium nitrate were lost.