A northshore sheriff’s office is putting out a safety alert after deputies have reported the emergence of a new drug on the streets.

The Tangipahoa Parish Sheriff’s Office said it is partnering with other local and federal agencies to alert the public to “green fentanyl,” which is increasingly showing up across the northshore and New Orleans area and has been linked to a growing number of overdose calls.

“The emergence of this green fentanyl has been linked to a recent spike in opioid-related emergency calls on the northshore, prompting an immediate drug warning in Tangipahoa Parish,” the Tangipahoa Sheriff’s Office said in a news release.

In a news release, the Sheriff’s Office said this new form of fentanyl comes in various shades of green. It also has been found in various forms, ranging from the consistency of sidewalk chalk to gel.

The fentanyl is highly potent and the Sheriff’s Office warns that it can easily be mistaken for marijuana or other less potent drugs.

The emergence of the green fentanyl comes months after Tangipahoa Parish authorities noticed a pink powdery substance, which they said is called “tusi” on the street, at several locations where fatal overdose victims were found. Although also called “pink cocaine,” that substance actually doesn’t contain any cocaine but instead is a mix of other dangerous drugs, including Ketamine, MDMA or ecstasy, methamphetamine, and fentanyl, the Sheriff’s Office said.

The Sheriff’s Office reminds anyone who comes across someone who has overdosed to immediately call 911 and administer naloxone if it is available.

The Tangipahoa Sheriff’s Office participates in Operation Angel, a program offering treatment for addicts, at no cost or fear of arrest. People can drop by any Tangipahoa Sheriff’s Office station or call 985-747-9696 to enter that program.