Glee star Naya Rivera, 33, is suspected of drowning on a lake called Piru near Los Angeles.

Rivera disappeared Wednesday after he had been boating with his 4-year-old son. The sheriffs of Ventura County, California, found the boy sleeping alone in a boat. The boy told authorities he had been swimming with his mother, but the mother never got back on the boat.

The search for the woman's body is still ongoing. At a press conference on Rivera’s disappearance, authorities said they were not sure if they would ever find the woman’s body.

“If a body is stuck in something underwater, it may never come up,” Kevin Donoghue, California’s Ventura County Chief Constable, said at a news conference Thursday.

More than 100 people have participated in Rivera's searches. The boat was found on the north side of the lake, where the water depth is about nine meters. Authorities say the exploration is particularly challenging, as there are many trees and plants underwater in that part of the lake.

- Visibility in the area is extremely poor. The searches are not safe for divers, Donoghue said at a news conference.

The search is still ongoing.

Photo: ZUMAwire / MVphotos

According to the authorities, there is no indication that the case is related to a crime, but it is still too early to say for sure what has happened. Donoghue commented to People that it could be an illness, for example.

- However, we cannot guess anything until the body has been found, Donoghue emphasizes.

The chief constable reveals to the newspaper that they will also investigate Rivera’s credit card information if he makes debits from his accounts after his disappearance.

- We also have an investigation on that side. So far, however, the explorations are targeting the lake, he notes.

The actress got her debut four years ago.

Photo: ZUMAwire / MVphotos

The actor’s 4-year-old son is currently with his father, Rivera’s ex-husband Ryan Dorsey, People says.

Rivera married actress Ryan Dorsey in 2014. In February 2015, Rivera announced she was expecting a couple’s firstborn. The couple’s son Josey Hollis Dorsey was born in September 2015. Rivera and Dorsey divorced in 2018 and ended up in joint custody.

The child is safe with his father, Ryan Dorsey.

Photo: ZUMAwire / MVphotos

The Rivera case has shocked the world. Rivera’s breakthrough role was in the Santana Lopez Glee series, whose actors have previously seen the tragic fates of real life. Cory Monteith, who played in the series, died of an overdose in 2013. Actress Mark Salling also died after committing suicide in 2018. Salling was convicted in December 2017 of possession of child pornography.

  • Read more: Glee star Naya Rivera's fatal moment recorded on video - police believe they know what happened to the missing actor on the lake