Provincial police say a 64-year-old Florida man has died after two boats crashed on Saturday night.

According to police, the fatal collision happened around 11:30 p.m. on Lake Joseph, near Emerald Island in Seguin Township, fifty kilometres northwest of Gravenhurst.

A 48-year-old woman from Markham was also seriously injured in the crash.

The cause is still under investigation. Anyone with information is asked to contact OPP.