Back-to-back shark attacks in Florida, 2 critically injured. Why the Sunshine Sate tops the rankings of shark bites globally.

Back-to-back shark attacks in Florida, 2 critically injured. Why the Sunshine Sate tops the rankings of shark bites globally.

Two successive shark attacks in Walton County, Florida, left three injured on Friday, with two in a critical condition.

Back-to-back Florida shark attacks startle start to summer season

A string of shark attacks left three people with severe injuries in Walton County, Florida, on Friday. Shark attacks on humans are rare and an official said the incidents happening within miles, and hours, of each other make these attacks extremely unusual. NBC News’ Marissa Parra reports.