A Hamilton man was threatened and robbed after he used social media to solicit sex.
Police said an investigation had been launched, after a man attempted to solicit sex using social media, last Monday, August 3.
Acting Detective Sergeant Andrew Hawke said after making contact with a woman, the man met with her in the Hillcrest area of Hamilton.
Two males and a female also joined the woman, he said.
"The four offenders have then threatened the male, blackmailing him to hand over money.