Detectives investigating a string of five homicides in two northern Nevada counties have made one arrest and believe all the killings are connected, including one at the exit for the Mustang Ranch brothel.

A married couple was found dead in a Fernley home Monday about 30 miles east of Reno and another dead man and woman were discovered a few blocks away.

Police determined those deaths apparently are tied to a fifth victim who was found in a ditch along the highway exit for the infamous brothel just east of Reno.

Lyon County Undersheriff Albert Torres told KRNV-TV that investigators think all five killings are connected.

KOLO-TV reported Tuesday one suspect had been arrested in connection with the case but no details have been released.

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Information from: KOLO-TV, http://www.kolotv.com