Possible shark attacks prompt heightened patrols at New York’s Long Island

Two swimmers were apparently attacked by sharks off the shores of Long Island on Tuesday, a day after two others reported being attacked while enjoying the water at popular New York beaches (James Carbone/Newsday via AP)

Two swimmers were apparently attacked by sharks off the shores of Long Island on Tuesday, a day after two others reported being attacked while enjoying the water at popular New York beaches.

At least one beach delayed opening to holiday revellers on Tuesday, after officials said drones spotted some 50 sand sharks that morning near a popular beach park.