Springfield Police say a man and woman have been found dead in a car behind the Walmart Supercenter on south Campbell.

Police say they are both employees of Walmart.

Lieutenant Tony Vienhage says they appear to be in their 20s.

Officers roped off the loading area with crime scene tape Friday afternoon.

Police don’t know how the man and woman died, but say there are no signs of anything suspicious.

The store remains open for business while police conduct their investigation.