GREENSBORO -- Police have charged three men and two women after receiving reports that several men were robbed when responding to online advertisements for sex or massage.

Greensboro police Detective K.R. Jones said five victims got directions to a location, then were robbed of cash and cell phones at vacant apartments in July. Jones said one victim had minor injuries.

Court documents reviewed by the Greensboro News & Record show the suspects were armed knives or guns.

Police have arrested Joshua Johnson, 18, his sister Joshana Johnson, 17, Shenault Hedrick, 18, and his sister, Janella Hedrick, 20, and Nnandi Turner, 17.

The suspects are charged with robbery with a dangerous weapon, conspiracy to commit a felony and common-law robbery.