Who's directly responsible for it, either intentionally or just negligent? You decide.
"Investigators probing the devastating blast in Beirut that killed at least 135 people and injured 5,000 more are pointing to a Russian ship docked in the city's port for nearly seven years without appropriate security precautions that officials warned was “a floating bomb.”"
https://www.foxnews.com/world/russian-ship-storing-ammonium-nitrate-was-left-in-beirut-port-without-safety-precautions-repo
"Investigators probing the devastating blast in Beirut that killed at least 135 people and injured 5,000 more are pointing to a Russian ship docked in the city's port for nearly seven years without appropriate security precautions that officials warned was “a floating bomb.”"
https://www.foxnews.com/world/russian-ship-storing-ammonium-nitrate-was-left-in-beirut-port-without-safety-precautions-repo
