Officials say two Cape Cod beaches closed after visitors spotted a great white shark biting a seal and spitting it back out onto the beach.

Beachgoers at Nauset Light saw the shark attack the seal at around 4 p.m. Wednesday, which resulted in a pool of blood. The seal was then thrown out of the water onto the beach, where it died.

A one-hour swimming suspension was issued for Nauset Light and Coast Guard beach, due to their close proximity to each other. Paige Long, a dispatcher with the Cape Cod National Seashore, says this is standard protocol.

Seals are a primary food source for great white sharks, which have been spotted in the Cape in increasing numbers over the years.