People continue to launch fireworks near highly flammable areas year after year — with disastrous results. And now, one group of firework-happy individuals on a private yacht in Greece are learning their lesson the hard way.

In June, 13 crew and seven passengers on a privately chartered yacht set off unauthorized fireworks from their ship. As far as officials can tell, the pyrotechnics then sparked a major forest fire on the island of Hydra, according to CNN.

“We are outraged,” Hydra Mayor George Koukoudakis said on state TV, per CNN. “If it’s true, it is something that really saddens me.”