As I understood they tried to mitigate the explosion by putting sandbags and straw bales around the bomb. The burning straw is what I guess you see at the top o

As I understood they tried to mitigate the explosion by putting sandbags and straw bales around the bomb. The burning straw is what I guess you see at the top of the explosion/fire. The straw also caused surrounding roofs to catch fire. Not sure why they didn't think of this and used fire proof stuff.