Rebecca Sarah Ryan, 15. Last seen in MercyFirst on Convent Road. (Nassau County, FL) Photo courtesy Syosset Patch.com

Nassau County Police are searching for a missing teenager, said to be endagered, last seen at MercyFirst in Syosset.

Rebecca Sarah Ryan, 15 of Farmingdale, was last seen Friday at MercyFirst on Convent Road, cops said. Police classified Ryan as endangered, adding she takes medication and that she does not have it with her.

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Editor’s note:  If you see this teen, please call 9-1-1 in your area and report her to police.