A man was tricked into meeting another man through a dating app and then robbed, police said.
The victim was also subjected to a homophobic slur and had his phone taken, officers investigating the incident said.
Greater Manchester Police (GMP) is now urging other potential victims to come forward.
A 19-year-old has been arrested on suspicion of robbery over the 2 September incident in Tameside, and remains in police custody.
