Toms River Police responded around 4:10 p.m. to reports of two teenagers trapped in the sand.
Crews were dispatched to the beach entrance near Seaview Road on the barrier island.
Police said the teens were reportedly digging a large hole when it collapsed on them.
A 17-year-old girl was rescued and treated at the scene, but her brother, identified as 18-year-old Maine native Levi Caverly, died.
ALSO READ | Homemade baby formula could be dangerous: What parents can do amid shortage
Amid baby formula shortage, experts are warning against DIY options
Rescue workers are working to recover the teen's body.
The family was visiting from out of town and spent the afternoon at the beach.
EMS crews and multiple police units responded to the scene.
This is breaking news. This story will be updated as more information becomes available.
----------
* Get Eyewitness News Delivered
* More New Jersey news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube
Submit a News Tip