Two people have died in Colorado from listeriosis.

The Colorado Department of Public Health and Environment says two people have died and its working with other health types after three cases of Listeria were reported since May 20.

All three cases involved people of Hispanic or Latino heritage, according to the CDPHE.

The two people who died were a man in his 30s and a woman in her 60s.

The source of the outbreak is still unknown.