Mandy Moore is grieving the loss of her neighborhood and her home, which was ravaged by the still-active Eaton Fire burning in Los Angeles County.

The former "This Is Us" star returned to find the main part of her Altadena, California, home "miraculously" still standing, though not livable, she said in an Instagram post.

This Is Us' star Mandy Moore has revealed her heartbreak after her Altadena neighbourhood has been burned down in the LA fires.

While another Los Angeles County wildfire burned homes to the ground, the community of Altadena was also left devastated by a quickly moving blaze — one that has left at least five people dead and injured several others as it wiped out entire buildings.

Five people have died in the Eaton Fire burning northeast of Los Angeles, according to the Los Angeles County Sheriff's Department. The identities and circumstances of their deaths have not been disclosed.

The Eaton Fire has burned more than 10,000 acres in northeast Los Angeles County, forcing about 33,000 residents to flee. It has torched homes and burned houses of worship in the communities of Altadena and Pasadena and is responsible for multiple deaths.