Naya Rivera's dead body has been found in the Southern California lake where the 33-year-old went missing last Wednesday, July 8.

"Based on the location where the body was found, physical characteristics of the body, the clothing found on the body and the physical condition of the body... we are confident the body we found was that of Naya Rivera," Ventura County Sheriff Bill Ayub told media on Monday, local time.

Ayub said there was no indication of foul play or suicide, and this was just a tragic accidental drowning.

Happening now: A body has been found at Lake Piru this morning. The recovery is in progress. A news conference will take place at 2 pm at the lake.

— Ventura Co. Sheriff (@VENTURASHERIFF)

Here's everything we know about the death of Glee star Naya Rivera.

'She saved her son.'

Rivera was discovered missing after her four-year-old son, Josey Hollis Dorsey, was found asleep and adrift on a boat in Lake Piru on Wednesday afternoon, local time.

The mother-son duo had rented a pontoon boat at about 1pm. Josey was found three hours later alone, after another boater raised the alarm.

Her car was found in a carpark nearby with her handbag inside.

Ventura County Deputy Sheriff Chris Dyer said last week the lake, about an hour north west of Los Angeles, was a "sanctuary" for Rivera, adding she had been going there for years.

The son later told authorities what he remembered happening.

"He and Naya swam in the lake together," Ayub said at the media conference. "It was during that time that her son described being helped onto the boat by Naya... He told investigators he looked back and saw her disappear under the surface of the water."

Authorities believed "she mustered enough energy to get her son back on the boat, but not enough to save herself".

An extensive search-and-rescue operation had been ongoing each day since Wednesday, with more than 80 people utilising helicopters, boats, ATV vehicles, dive teams and ground personnel.

She was presumed dead on Thursday.

Rivera's family and friends visit the lake.

On Saturday, a spokesperson for the Ventura County Sheriff's Office confirmed to PEOPLE that Rivera's family had been present at the site throughout the five-day search.

"Naya's mother and brother have been at the lake every day since Naya disappeared. They have been in constant contact with the Sheriff's Office and involved in the search. On Saturday morning, they joined the search on a sheriff's boat," a source told the publication.

ABC Newsproducer Anastasia Williams tweeted a photo of a man and woman at the dock, with the woman on her knees with her arms outstretched. It was confirmed the image showed Rivera's mother and brother.

The search continues for Naya Rivera. @VENTURASHERIFF told press that this man and woman are Naya’s mother and brother. Her mother is kneeling on the dock with her arms outstretched towards the water. pic.twitter.com/5q6eGrWojR

— Anastasia (@AnastasiaElyseW)

Following the discovery of her body, Rivera's family and a few of herGleecastmates held hands on the lake shore. Today is also the 7th anniversary of Rivera's former co-star Cory Monteith's death.

This photo of the cast of #Glee gathering together at Lake Piru today where #NayaRivera ’s body was found is incredibly powerful — especially when you consider today is the 7 year anniversary of Cory Monteith’s death. I’m a mess. pic.twitter.com/RhY9hUb78E

— Dave Quinn (@NineDaves)

"What a force you were."

Rivera's former co-stars and friends have shared prayers and tributes to the actress.

Jane Lynch, who played Sue Sylvester onGlee, tweeted love to Rivera's family following the discovery of her body.

Rest sweet, Naya. What a force you were. Love and peace to your family.

— Jane Lynch (@janemarielynch)

Over the weekend, her former partner Tahj Mowry, an actor and the younger brother of Tia Mowry and Tamera Mowry, shared an emotional tribute.

"My sweet Naya - to say that I am devastated would be an understatement. This is a nightmare. Everyday gets harder. However, I am holding onto hope that you will be found," he began. ⁣ "We grew up together. We became adults together. We experienced so many firsts together.

"You were my first experience with everything; love, intimacy, heartbreak. We broke each other's hearts and then mended them back together... more than once. I will never not think of you.

"No woman has ever measured up what you gave me or how you made me feel. I've never liked to admit it but I have never stopped loving you. A part of me always wished for the day where God would bring us back together to be what we dreamt we could have been."

He said he prayed deeply for Rivera's family and asked everyone reading to "please lift up" her family, including son Josey and ex-husband Ryan Dorsey.

"I still have faith. I still have hope. Let's please all pray that she is found and brought home safely. ⁣

"Naya, I miss you deeply. I wish I got the chance to tell you that once more but I'm believing I will get that chance.

"I know deep down you've always known how I felt. I look forward to the day where I can see your beautiful face once more and tell you everything I’ve wanted to say that I didn’t get the chance to say. I love you forever. I always have and I always will."

Chris Colfer, who played Kurt Hummel onGlee, said Rivera's "brilliance and humor were unmatched."

"Her beauty and talent were otherworldly. She spoke truth to power with poise and fearlessness. She could turn a bad day into a great day with a single remark. She inspired and uplifted people without even trying. Being close to her was both a badge of honor and a suit of armor," the actor wrote on Instagram.