The blaze threatened the observatory and communications infrastructure at the peak. Later, an observatory official said it appeared to be under control.

The Eaton Fire burning through the hillsides and mountains above Pasadena is now approaching the Mount Wilson Observatory, with potential implications for both the historic structures and emergency communications during the ongoing wildfire siege devastating Los Angeles.

According to the Los Angeles County Sheriff's Department, five people have died in the blaze that has moved through Pasadena, Altadena, and the Angeles National Forest.

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.