A body has been found at the California lake where former Glee actress Naya Rivera went missing, police have said.
The 33-year-old disappeared while on a boating trip with her four-year-old son at Lake Piru on Wednesday.
A rescue mission was launched but less than 24 hours later police said Rivera, best known for playing a high school cheerleader on musical comedy series Glee, was presumed dead.
A body was found on Monday, Ventura County Sheriff's Office said.
Naya Rivera at Womens Guild Cedars-Sinai Annual Luncheon held at Beverly Wilshire Four Seasons Hotel on November 06, 2019 in Beverly Hills, California, United States (Photo by JC Olivera/Sipa USA)
BEVERLY HILLS, LOS ANGELES, CALIFORNIA, USA - SEPTEMBER 19: Naya Rivera arrives at the Los Angeles Premiere Of Roadside Attraction's 'Judy' held at the Samuel Goldwyn Theater at the Academy of Motion Picture Arts and Sciences on September 19, 2019 in Beverly Hills, Los Angeles, California, United States. (Photo by Xavier Collin/Image Press Agency/Sipa USA)
LOS ANGELES - AUGUST 13: Naya Rivera at FOX's 'Teen Choice 2017' at the Galen Center on August 13, 2017 in Los Angeles, California. (Photo by Frank Micelotta/FOX/PictureGroup)
Actress Naya Rivera attends the 24th Annual Race to Erase MS Gala at The Beverly Hilton Hotel in Beverly Hills, CA on May 5, 2017. (Photo by CraSH/imageSPACE) *** Please Use Credit from Credit Field ***
31 October 2014 - Los Angeles, California - Naya Rivera. UNICEF's Next Generation Presents 2nd Annual UNICEF Masquerade Ball Held at The Masonic Lodge at Hollywood Forever. Photo Credit: F.Sadou/AdMedia/Sipa USA
31 October 2014 - Los Angeles, California - Ryan Dorsey, Naya Rivera. UNICEF's Next Generation Presents 2nd Annual UNICEF Masquerade Ball Held at The Masonic Lodge at Hollywood Forever. Photo Credit: F.Sadou/AdMedia/Sipa USA
18 March 2014 - Los Angeles, California - Naya Rivera. 2014 The 'Glee' 100th episode celebration held at Chateau Marmont. Photo Credit: Tonya Wise/AdMedia/Sipa USA
8 January 2014 - Los Angeles, California - Naya Rivera. 40th Annual People's Choice Awards - Arrivals held at Nokia Theatre L.A. Live. Photo Credit: Russ Elliot/AdMedia/Sipa USA
Naya Rivera attends the 2014 People's Choice Awards, held at Nokia Theatre L.A. Live in Los Angeles, California, Wednesday, January 8, 2014. (Photo by Jennifer Graylock/Sipa USA)
11 December 2013 - Beverly Hills, California - Naya Rivera, Big Sean. The Hollywood Reporter's Women In Entertainment Breakfast Honoring Oprah Winfrey at Beverly Hills Hotel. Photo Credit: Kevan Brooks/AdMedia/Sipa USA
24 November 2013 - Los Angeles, California - Naya Rivera. 2013 American Music Awards - Arrivals held at Nokia Theatre LA Live. Photo Credit: Byron Purvis/AdMedia/Sipa USA
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Recovery is in progress and a news conference will take place later.
Rivera is feared to have drowned at Lake Piru, which is a popular spot for swimmers about 56 miles north-west of central Los Angeles.
Her son, Josey Hollis, was found asleep and wearing a life jacket on the boat, with his mother nowhere to be seen.
He told police he had seen her disappear beneath the surface.
CCTV from the dock shows her rented boat departing at about 1pm and it was later found drifting in the northern area of the lake at around 4pm.
Investigators had stressed the many difficulties posed by the search, including strong currents, dangerous underwater debris and visibility of 1ft-2ft.
On Sunday, police extended their search to the cabins and outbuildings around the lake – as well as taking another look at the shoreline.
It came after an online petition demanded the search be extended in case Rivera had left the lake.
Police said they were almost certain she was still in the water. Sonar had been used to scan the bottom of the lake while police divers and cadaver dogs also took part in the search.
Rivera looks increasingly likely to become the third major cast member from Glee to die in their 30s.
Co-star Mark Salling, who Rivera dated at one point, killed himself in 2018 at age 35 after pleading guilty to child pornography charges.
Cory Monteith, one of the show's leads, died at 31 in 2013 from a toxic mix of alcohol and heroin.
Rivera became engaged to rapper Big Sean in October 2013, but they ended their relationship in April 2014.
She then began dating actor Ryan Dorsey and they married in Mexico in July that year.
The couple had son Josey in September 2015.
Rivera filed for divorce after two years of marriage, but they later called off the separation before finalising their divorce in June 2018.