An investigation is underway after a 29-year-old man was found dead in Harlingen of a suspected fentanyl overdose, according to the Cameron County Sheriff’s Office.

The death was reported the same day Harlingen officials announced a total of 12 fentanyl related overdoses in the last week, four of which killed Harlingen residents.

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Deputies with the Cameron County Sheriff’s Office responded to a residence on the 4400 block of Wood Avenue where they encountered the deceased male and substances “indicative of drug use in the vicinity of the deceased,” a release stated.

Preliminary results show the substances found at the scene tested positive for fentanyl, the release added.

An autopsy of the victim was ordered.

Anyone with information on the investigation are urged to contact the Cameron County Crime Stoppers at 956-350-5551.