Sharks attack three swimmers off two Florida beaches

Woman, 45, sustained significant trauma' and had part of arm amputated after one attack, and two teens were injured in another

Two separate shark attacks at Florida beaches wounded three swimmers, including two teenagers, prompting some popular vacation spots to temporarily close, according to authorities.

A shark bit a 45-year-old woman at about 1.20pm on Friday while she swam at Watersound beach, along the coast of Walton county, Florida, in the eastern part of the state.