The Asbury Park Press reports that officials Sunday found dead dolphins at Island Beach State Park, Stone Harbor and an area off the bay in Strathmere.
On Saturday, officials found two dead dolphins in Sea Girt and Brigantine.
The senior technician with the Brigantine chapter of the Marine Mammal Stranding Center, Jay Pagel, says it's the "same thing that's been happening" since July 9.
From New Jersey south to Virginia, more than 230 dolphin deaths have been reported dead. A precise cause for the deaths is still unknown.
The deaths have been declared an "unusual mortality event" by the National Oceanic and Atmospheric Administration.
Information from: Asbury Park (N.J.) Press, http://www.app.com