NSW Police are investigating after two bodies with “significant injuries” were discovered by a family memberat a shop in Sydney’s west.

Officers were called to a store in Oxford Street at Cambridge Park near Penrithabout 9:40am on Saturday, following reports of an assault.

There they found the bodies of a man and a woman believed to be in their 60s.

The pair have not been formally identified.

Detective Superintendent Michael Cantrell said the bodies were discovered by a family member, who is understood to have contacted police.

“The family are obviously devastated,” he said at a press conference.

Locals said the couple owned Buzzy Bee’s Burger House for more than two decades and were well-known in the community.

Grieving family members attended the scene this morning and spoke with detectives.

Detective Superintendent Cantrell said the bodies had “significant injuries”.

“It’s a confronting scene,” he said.

“Obviously the welfare of our officers is being addressed, and we have systems in place for that.”

Footage possibly relating to the incident was shared to social media, according to Detective Superintendent Cantrell.

“I’m aware that there is footage around, and it’s been through social media, and we’re looking into that and looking at all lines of inquiry,” he said.

Police haven’t ruled out a third person being involved.

James is a local who lives a few metres from where the incident took place. He and his partner often dine at the eatery.

“They make really good food … the owners are lovely, lovely people,” he said.

“It’s a tragedy, something like this in our neighbourhood, it happened here in daylight. It’s just sad.”

Long-time resident Lauren Schofield has lived in the area for 20 years and the eatery has been there for as long as she can remember.

She locked all her doors after hearing of the deaths and is worried for the safety of her six children.

“It’s very scary, our kids walk up to the shops all the time … it’s terrifying,” she said.

Ms Schofield had only yesterday spoken to the owners.

“She made me breakfast yesterday morning so it’s really sad. They were a beautiful family, hardworking, always there from open til close.”

A crime scene has been established at the shop.