Police investigating the sudden death of a woman at a Utah retirement community were shocked to find the body of her husband in her freezer - and his remains could have been there for 11 years.

Officers found Jeanne Souron-Mathers, 75, had died when they carried out a wellness check, after the community's maintenance worker said he hadn't seen her for two weeks.

Souron-Mathers was found dead in bed with 'no apparent trauma' at the Remington Park Retirement Apartments in Toole, west of Salt Lake City.

Officers checked the apartment to see if there was any indication of how long she had been dead - and were stunned to find a second body in the freezer.

Tooele City Police sergeant Jeremy Hansen told Fox 13 officers found Jeanne Souron-Mathers, 75, dead in her home when they performed a welfare check

When officers started to go through the fridge to check expired food to try to determine how long she may have been dead, they were shocked to find a man's body in the freezer

'[The officer was] thinking, "OK, we just need to investigate the death, nothing super suspicious", and calls the detective because that's our protocol,' Tooele City Police sergeant Jeremy Hansen told Fox 13.

'We can look at like food in the fridge, freezers, anything that gives us some sort of a timeline as to when that person actually died.'

'The detective sees a deep freezer in the utility room, he opens it up and immediately finds an unidentified, deceased adult male in the freezer.'

The body, which was fully intact, was identified as Souron-Mathers' husband, Paul Edwards Mathers, 69.

Officers suspect foul play in his death, but his wife's death is not considered to be suspicious.

Souron-Mathers lived at Remington Park Retirement Apartments in Toole, west of Salt Lake City, and her husband, Paul Edwards Mathers - whose body was found in the freezer - was also listed as a tenant

Detectives have struggled to determine a time frame for his death, as they received a wide range of answers from residents in the complex when they asked when he was last seen alive

The autopsy that nailed down Mathers' identity didn't help investigators solve how he died or exactly how long his body was tucked into the chest freezer.

Detectives have struggled to determine a time frame for his death, as they received a wide range of answers from residents in the complex when they asked when he was last seen alive.

Investigators say the man´s body could have been in the freezer between 1 and 11 years.

Souron-Mathers had lived in the apartment since 2007.