AN office employee who died in her work cubicle was not discovered until the day after her death.

Rebecca Wells, 51, was found hunched over her desk at the LA County of Internal Services by a security guard on Saturday afternoon, KTLA said.

Police said she may have been dead since Friday afternoon. The grandmother was last seen alive about 9am on Friday.

Investigators have not determined the official cause of death, but they said foul play was not suspected.

"I came in Saturday to do a little work, and I saw them when they were taking her out," co-worker Hattie Robertson told KTLA.

Read more at KTLA.com.