Was it immediately clear to the radio correspondent Herbert Morrison what caused fire?

Herbert Morrison, the radio correspondent who famously reported on the Hindenburg disaster, did not immediately know the cause of the fire.

In fact, he was initially confused and surprised, as his eyewitness account shows:

> "Oh, the humanity! ... It's bursting into flames!"

He continued to report on the unfolding event, describing the flames and the panic of the passengers.

It wasn't until after the disaster that investigations determined the likely cause of the fire, which was static electricity buildup during the landing process.

Therefore, it wasn't immediately clear to Morrison what caused the fire, and his famous report captured the shock and confusion of the moment.