Battery explosion or burning of the electric bus was a new type of fire for the vehicles. How to put out this type of fire if there is any passenger in the vehicle?
The really sad part about this is that potentially dangerous equipment has been introduced with no warning, no preparation, no training, no consideration whatsoever of public safety--all because it's "green" and must therefore be proclaimed as "good". The FAA and TSA websites proudly proclaim such absurdities as fining a well-known movie production crew $150k for inadvertently shipping 3 Bic lighters air freight. I'm not suggesting we carelessly ship tanks of benzene air freight or ban EV busses, only that we be honest and reasonable about ALL things. We should have safety measures (controls, training, proven techniques, etc.) in place BEFORE introducing dangerous equipment and we must always be truthful--even when it's inconvenient.
In the Slovak Republic, we do not yet have the technical means for extinguishing purely electric vehicles. Extinguishing is carried out as a standard, where a large amount of water is required as an extinguishing agent.