A Florida man has died in a boat crash on Lake Joseph.

West Parry Sound OPP is investigating the Saturday night collision of the two boats near Emerald Island.

The crash killed the 64-year old man and sent a 48-year old Markham woman to hospital with critical injuries.

Police are asking anyone who may have been in the Emerald Island area around 11:30 Saturday night and saw the crash or has any information to call 1-800-222-8477.