Richard Simmons' cause of death is being investigated by law enforcement

Fitness guru and iconic infomercial personality Richard Simmons left many fans heartbroken when he died on Saturday, one day after his 76th birthday.

Richard's cause of death is currently being investigated by the Los Angeles Police Department. Police revealed to People that there was "no foul play" in the exercise pioneer's death. The Medical Examiner's Office announced that Richard's cause of death has been deferred, which means that "an investigation and additional testing" is needed, per People.

According to the news publication, "It can take up to three months before a determination is made on the cause of death."

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The small screen star died in his home on July 13. Police and the fire department, who responded to a call that Richard's housekeeper made at 10 a.m. Saturday morning, pronounced him dead at the scene, according to TMZ.

Upon Richard's death, his publicist told People that "the world has truly lost an angel." Richard was very optimistic in is golden years, revealing to People that it felt "good" to hitting 76.

"I am grateful that I'm here, that I am alive for another day," he said. "I'll spend my birthday doing what I do every day, which is to help people."

Just hours before Richard's death he shared a post on X, formerly Twitter, with his followers. He wrote: "Hello gorgeous! Please don't rain on my parade." Fans quickly took to the post to question the tragic news and to share there devastation.

One user wrote: "Yikes! 5 hrs. ago posting messages & gone just like that. You seriously never know," while another penned: "Umm, this is haunting if this post was shortly before you passed. Rest in peace :("

Others sent "rest in peace" messages, while some also penned: "We love you, Richard! Always."

His signature curly red afro, charismatic personality, and fun fitness routines made him an unforgettable figure in pop culture, which is why there allegedly was a movie about him being produced.

Richard lived the last several years of his life out of the spotlight, choosing to avoid public in-person appearances, according to Distractify. Although he wasn’t on television, he remained connected with fans via social media. Richard had many Clubhouse chats, and used his personal Facebook page to share stories about his career and the different celebrities he’s hobnobbed with throughout the years.