Update (July 10, 2020): Officials believe Glee star Naya Rivera drowned during a boating trip with her son on Wednesday. 

During a Thursday press conference, Sgt. Kevin Donoghue said Rivera's 4-year-old son, who was found alone on the boat on Wednesday, "gave enough information to investigators to conclude that his mother never made it out of the water," reports CBS News. 

CNN reported Rivera's son previously told investigators his mother never made it back to the boat after the pair went for a swim. 

The day before the incident, the actress posted an Instagram photo of herself and her son with a caption reading "just the two of us." 

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just the two of us

A post shared by Naya Rivera (@nayarivera) on

Original (July 9, 2020): Rescue officials continued their search for Glee actress Naya Rivera Thursday morning after she went missing on a lake in California’s Los Padres National Forest.  

The 33-year-old disappeared in Lake Piru Wednesday afternoon after renting a small boat with her child. Both were seen boarding the boat, but only the child was found sleeping onboard nearly three hours later, CNN reports

Ventura County Sheriff's Capt. Eric Buschow said the child, still wearing a life jacket, was unharmed and told investigators that his mother never returned to the boat after the two went for a swim. 

“There’s a lot of challenges in a reservoir this size, at times with visibility,” Buschow said. “I don’t have details yet as to the depth of the area where the boat was found or what conditions they’re encountering out there.”