A childhood friend of the Quebec man killed in a Florida boat explosion earlier this week says one of the victim's sisters was among the other six passengers injured in the blast.

Several local media outlets are quoting the Florida Fish and Wildlife Conservation Commission as saying Sebastien Gauthier died after the explosion at the Lauderdale Marina.

A 41-year-old man from Quebec died following a boat explosion at a South Florida marina that also injured six people. The explosion occurred Monday, and Florida Fish and Wildlife Conservation Commission confirmed the man's identity to CBC on Wednesday.