Washington July 4, 2017 6:50 pm Lifeguards Warn of Stingrays at Local Beaches As more people crowd the beaches for the Fourth of July celebrations, lifeguards are warning beachgoers to be aware of stingrays. NBC 7’s Wendy Fry has more. US & World Videos 2:45 La Jolla Concours d'Elegance classic race cars 1:39 Troops Endure Hyper-Realistic Training 2:07 New study links consuming red meat with dementia 2:05 Police find, return dozens of abandoned Amazon packages 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl