Jacksonville Beach police said they received information about 12:45 a.m. Tuesday from the OCEARCH ocean research group regarding the shark in the area.
The shark, which was tagged on Sept. 17 off the coast of Cape Cod, Mass., was 16 feet in length and weighed 3,456 pounds at the time she was tagged. She was given the name Mary Lee and is currently tracked and monitored via GPS by the research group.
When the shark entered the surf zone early Tuesday morning at Jacksonville Beach, about 200 yards offshore, the research group contacted Jacksonville Beach police notified them of the shark's presence. There were no swimmers in the area at the time of the report.
At midday Tuesday, the shark was tracked about 15 miles offshore.
The group also advised police of another great white named Genie, which was tagged off of Cape Cod and has moved to the area about 40-60 miles off the coast of Jacksonville.
For any tracking information regarding the sharks, go to OCEARCH's website or Facebook page.
Due to the size of the shark and the potential dangers, police are recommending that beachgoers stay out of the water until the shark leaves the area.