Lebanon's security chief has said the building that exploded contained highly-explosive materials. The footage is incredible. Awful that lives have been lost from this; a real tragedy.
President Michel Aoun said the blast was caused by 2,750 tonnes of ammonium nitrate stored unsafely in a warehouse.
Thoughts that fireworks went off nearby first.
The scale of that blast was truly shocking. Horrible amount of injuries and loss of life.
