A couple have been found dead in South Australia just after 11pm on Sunday.

The man and woman were located when police conducted a welfare check at the Bordertown property on Melvyn St, which leads to the rural town’s cemetery.

The 47-year-old man and a 41-year-old woman, who police say were in a relationship, were both found dead inside the home.

Know the news with the 7NEWS app: Download today

“Detectives from Limestone Coast, Forensic Response Section and Major Crime Investigation Branch attended the scene and investigations are continuing,” SA Police said.

Police are not looking for anyone else in relation to the deaths.

A report will be prepared for the coroner.

Anyone with any information is asked to contact Crime Stoppers.