Heidi Montag and Spencer Pratt’s home destroyed by Pacific Palisades fire

The family home of Heidi Montag and her husband Spencer Pratt has reportedly been lost to raging wildfires that are carving a devastating path through the Pacific Palisades neighbourhood in Los Angeles.

It is understood their home was destroyed Tuesday local time.

By then the couple, who rose to fame on reality series The Hills, and their children were safely evacuated.

WATCH THE VIDEO ABOVE: Hollywood in firing line as wildfires scorch homes.

Spencer’s sister Stephanie Pratt said strong winds meant “there was nothing” that could be done.

“I am beyond heartbroken for my brother, Heidi and the kids,” she shared on social media.

“Just spoke to my dad - he tried to save my brother’s house but the wind is so strong there was nothing he could do.

“The Pacific Palisades is completely on fire.”

Numerous buildings were destroyed and nearly 1200 hectares burned in the Pacific Palisades area between the beach towns of Santa Monica and Malibu, officials said.

A fire official told KTLA that several people were injured in the Palisades Fire, some with burns to faces and hands. One female firefighter had also suffered a head injury.

In the frantic haste to get to safety, roadways were clogged and scores of people abandoned their vehicles and fled on foot, some toting suitcases. A bulldozer was brought in to push the cars to the side and create a path for emergency services, the LA Fire Department said.

Officials said about 30,000 residents were under evacuation orders and more than 13,000 homes were under threat.

And the worst could be yet to come.

The blaze began around 10.30am, shortly after the start of a Santa Ana windstorm that the National Weather service warned could be “life threatening” and the strongest to hit Southern California in more than a decade.

The winds were expected to increase overnight and continue for days, producing isolated gusts that could top 160km/h in mountains and foothills — including in areas that have not seen substantial rain in months.

The Pacific Palisades neighbourhood includes hillside streets of tightly packed homes along winding roads nestled against the Santa Monica Mountains and stretches down to beaches along the Pacific Ocean.

Roads were clogged in both directions as evacuees fled down toward the Pacific Coast Highway while others begged for rides back up to their homes to rescue pets. Two of the homes on fire were inside exclusive gated communities.

US President Joe Biden said he and his team are working with state and local officials and he has offered “any federal assistance that is needed to help suppress the terrible Pacific Palisades fire”.

Film studios cancelled two movie premieres due to the fire and the Screen Actors Guild cancelled a live reading of nominations for its awards

- With AAP