A couple enjoying their kayak paddle didn't notice the school of sharks swimming just below the surface.
The sharks were spotted off Hillsboro Beach on Tuesday afternoon, just north of the lighthouse, WLPG reported.
Deerfield Beach city officials said the Broward Sheriff's Office was checking on the beaches and lifeguards were on high alert.
Two paddle boarders were also seen near the sharks, seemingly unaware the school was there.
The school wasn't too far from where another school of sharks was seen last week, off Deerfield Beach.