Explained: What happened in deadly Beirut explosion

The size of the explosion that ripped through the port in the Lebanese capital Beirut has shocked the world.

Some 300,000 people have been left homeless, at least 130 were killed and thousands have been injured.

But what do we know about where and how it happened?

Scripted, produced and edited by Rami Abukalam, Adam Parker and Victoria Elms
Voiced by Ashish Joshi

Satellite imagery: Planet Labs Inc