Actress Naya Rivera, the sister of former Raiders TE Mychal Rivera, is missing after a boating accident. Photo by Xavier Collin/Image Press Agency/Sipa USA

Naya Rivera, an actress and the sister of former Oakland Raiders tight end Mychal Rivera, has gone missing in California, and authorities believe she may have drowned in a boating accident.

The Ventura County Sheriff’s Office announced on Wednesday night that a search is underway for a possible drowning victim at Lake Piru. Rivera was identified early Thursday morning as the missing person.

Rivera’s four-year-old son was found on a boat alone. The boy told officials he had gone swimming with his mother. You can hear some more details from “Good Morning America” below.

Rivera, 33, is an actress and singer who most notably starred in the TV series “Glee” from 2009-15. Mychael Rivera is currently a free agent. He was drafted in the sixth round by the Raiders in 2013 and played for them for four years.

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