Donna Hartson: Michigan woman dies while diving off Key Largo, Florida

Authorities say a Michigan woman died while diving off Key Largo.

The Monroe County Sheriff's Office reports that 64-year-old Donna Hartson, her husband and six others were diving off a boat on the Benwood Reef Tuesday afternoon.

The vessel's captain told deputies the divers had been in the water about 40 minutes when Hartson surfaced and signaled for help. By the time the captain got to her, Hartson was unresponsive. The captain and others pulled Hartson onto the boat, began CPR and called the Coast Guard.

The boat returned to shore, where deputies and paramedics were waiting. Hartson was taken to a nearby hospital, where she was pronounced dead.

An autopsy will determine the cause of death.