I was there, I landed on the 1 hour delayed BD111 and found Schiphol to be a total chaos.
Arrivals 2 and 3 were closed so all baggage had to be transported to the (rather small) arrivals 1, total chaos, 20-30 flights trying to be crammed onto 1 baggage carousel... There was only one exit open, againg total chaos there, several things really struck me as wrong..

1) Schiphol had NO means of addressing the public outside the terminal

2) Schiphol had no services outside, no toilets, refreshments etc.. even after standing outside for over 3 hours there were no services...

As this is the second major fire in 2 months I hope they will finally learn a lesson out of this...

What actually happened (according to the dutch news) is that the Flame Broiler caught fire, the air duct above the broiler was made to cope with heat but the heat at the 7th and 8th floor of the termianl building was to intense and the roof caught fire, producing huge amounts of smoke, that also entered the terminal buiding. Because the last fire at Schiphol spread so quickly the fire brigade kept the building closed until they were sure there was no risk...