Florida authorities warn of shark dangers after three people are attacked

People walk along the shoreline in Navarre Beach, Florida (Nick Tomecek/Northwest Florida Daily News via AP)

Authorities are using boats to patrol the ocean and warning swimmers about sharks this weekend along Florida’s Gulf Coast, where three people were hurt in two separate shark attacks on Friday.

The attacks off beaches in the Florida Panhandle led authorities to temporarily close several beaches to swimmers on Friday.