A childhood friend of the Quebec man killed in a Florida boat explosion earlier this week says one of the victimB次元官网网址檚 sisters was among the other six passengers injured in the blast.

Thi Cam Nhung L锚 says she grew up with Sebastien Gauthier in Quebec City and considered him her best friend.

L锚 says GauthierB次元官网网址檚 older sister was also on the boat in FloridaB次元官网网址檚 Broward County when it exploded and she was taken to a hospital.

She says GauthierB次元官网网址檚 family was in Florida to celebrate the holidays and that his sudden death feels B次元官网网址渦nimaginable.B次元官网网址�

A video posted on social media Monday shows the vessel engulfed in flames following the explosion, with a thick column of black smoke billowing into the sky.

The Florida Fish and Wildlife Conservation Commission has confirmed that Gauthier died of his injuries, saying a preliminary investigation shows the 37-foot vessel exploded after its engines were started.

L锚 remembers Gauthier as someone who was always smiling and says she is waiting for answers about what led to her friendB次元官网网址檚 death.