Two Edgartown men face drug charges including heroin possession following a bust Friday by Edgartown police and the Martha’s Vineyard Drug Task Force.

According to a post on the Edgartown police department’s Facebook page, a search warrant was issued by the Edgartown District Court Friday morning authorizing a search at number 10 Chamber’s Way in Edgartown.

The subject of the warrant was Justin Clark, 20. “The investigation revealed that Clark had been selling heroin,” police said. Officers located and seized approximately 10 grams of heroin that police said was “ready for distribution,” along with baggies, a scale, razors, two and a half ecstasy pills and a small amount of psilocybin mushrooms.

Mr. Clark was arrested and charged with possession to distribute a class A drug and possession of a class B drug.

Brandon Francis, 22, also of Chamber’s Way, was arrested and charged with possession of a class C drug.

The Facebook post underlined the seriousness of what it called a growing prevalence of heroin on the Island. “Heroin continues to be prevalent on the Island with tragic consequences,” the announcement said, noting that there had been two recent overdoses on the Vineyard: on Sept. 14, a 24-year-old man died of an obvious suspected heroin overdose in West Tisbury, police said, and on Oct. 1, the life of a 27-year-old man was saved by Oak Bluffs emergency personnel when he was discovered unconscious and barely breathing “from an obvious heroin overdose.”

Police are urging members of the Vineyard community to inform their local police department if they suspect or know of narcotics dealing, especially heroin.

“It could save a life,” the announcement said.