Tuxedo/Sloatsburg, NY - Fire in a 2 story, wood frame, 40 x 100, mixed occupancy building. Tuxedo reported heavy fire on the second floor and a burn victim as a result of a gas explosion. The victim was transported by helicopter with serious burns to Westchester County Medical Center. This fire occurred on the borderline between Tuxedo and Sloatsburg. The fire building was in the Sloatsburg Fire District. The building to the north is in Tuxedo's response area.