Detectives investigating a fatal drug overdose arrested a man and two women in Hicksville just after 9 p.m. Monday after making arrangements to buy drugs from them, police said.

None of the three were charged with involvement in the fatality -- and Nassau County police did not immediately provide details about that case.

The trio was arrested after Narcotics / Vice Bureau detectives approached their vehicle, a 2015 Acura, near the corner of Grape Lane and Glow Lane and said they found one of the three smoking marijuana.

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Donovan Joseph, 24, of 299 Franklin Ave., Hempstead, was found to be in possession of crack, police said, and was charged with third-degree criminal sale of a controlled substance, third-degree criminal possession of a controlled substance and fifth-degree criminal possession of a controlled substance. He also was held on an unrelated warrant charge, police said.

He was arraigned Tuesday in First District Court in Hempstead and held on a $35,000 bail. He was represented by Legal Aid, which does not comment on cases.

Also arrested were the two women: Rosanallys Davila, 24, of 2 Catherine St. in upstate Schenectady; and, Kassandra Delgado, 22, of 318 Washington St., in Hempstead.

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Davila was charged with unlawful possession of marijuana and was released on an appearance ticket returnable to First District Court on March 23.

Delgado was charged with fourth-degree criminal facilitation and as released on an appearance ticket returnable to First District on March 23.

Police did not detail what led detectives to make initial contact with the trio, other than to say officers were attempting to make contact with "a possible drug dealer" as part of their investigation into the overdose.

With Ellen Yan