Glee actress Naya Rivera is feared to have drowned after she went missing in a California lake, according to local police.
The Ventura County sheriff's department tweeted at 9:30pm on Wednesday (local time) that it was searching for a possible drowning victim at Lake Piru, just north of Los Angeles.
A later update said the missing person has been identified as Rivera, and a search and rescue operation for her would continue on Thursday morning.
According to CBS, Rivera rented a pontoon boat at about 1pm for her and her four-year-old son to take onto Lake Piru.
About three hours later, another boater found her son sleeping in the boat by himself. Officials were notified and a search began with helicopters, drones and dive teams.
The child is reportedly unharmed.
He told investigators he was swimming with his mother, but she never got back into the boat.
"There's a lot of challenges in a reservoir this size, at times with visibility," Captain Eric Buschow of the Ventura County sheriff's department said, according to CBS.
"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."