Watch: Massive weapon haul at Los Angeles mansion with links to Getty family

A massive haul of weapons have been seized by police in a wealthy area of Los Angeles.

Authorities believe they found more than 1000 rifles and handguns as well as thousands of rounds of ammunition on Wednesday (local time) at a mansion on the border of the Bel Air and Holmby Hills suburbs.

The mansion is owned by Cynthia Beck, who has three children with the son of oil tycoon J. Paul Getty, Gordon Getty, reports the Los Angeles Times.

Police came across the stash at the house after receiving a tip about illegal firearms sales.

Girard Saenz, 57, was arrested at the scene for breaking a law prohibiting the manufacture, possession or sale of assault weapons and high-calibre rifles, according to USA Today.

It is not yet known if he is connected to Beck or if she is connected to the events.

Video and photos from the scene show the incredible haul spread out over the mansion's driveway, which is close to the Playboy Mansion.

"I had never seen so many weapons in my career of 31 years," said Lieutenant Chris Ramirez.

"That's such a big arsenal in a residence like this, in this type of neighbourhood. It's astounding."

Authorities also said they believed there had been no immediate risk of danger to the public.