This is scary stuff! And these are supposed to be fans of the red team tossing the fireworks onto the field. Below from Yahoo.com;
When fans throw something on the pitch, play usually stops. That's not how Dinamo Bucharest's Gabriel Torje does it, though. When his own fans threw a large blazing firecracker just in front of him as he made a move towards goal in the Romanian Cup final against Steaua Bucharest, he tried to play on like dodging firecrackers is a part of the game.
The referee did stop play for a moment after that, however, and it seems being unable to take advantage of the diversion hurt Dinamo because it ended up losing the match to its rival by a score of 2-1