People have been scammed out of hundreds, and often thousands, of euro.
Gardai are issuing a warning about romance fraud.
Scammers prey on people's trust, usually in dating apps or other online forums, and manipulate them in to believing there is true feeling between them.
They may often, initially, ask for small sums of money, but this can quickly spiral.
Victims are usually reluctant to go to Gardai, because of embarrassment.
Detective Inspector Mel Smyth, of the Garda National Economic Crime Bureau, joined Clem Ryan on Wednesday's edition of Kildare Today.
He relayed the experience of "Carol", who did seek the help of Gardai when she was targeted by a romance fraudster.

Disappointment As Parochial House In Celbridge Set For Future Plans Still Not Purchased By KCC
Initial Scoping Exercise Undertaken For Future Management Of Curragh
ESB Identifies Two Kildare Areas As Dangerous For Swimming, As Heat Warning Continues
€640,000 Worth Of Cannabis Seized In Ballymore Eustace
Kfm Obituary Notices
Uisce Éireann Works Cancelled In Prosperous And Rathangan Tomorrow
Trailer And Tools Worth Over €8,000 Stolen From Farm In Athy
Disruption To Water Supply In Four Areas Of Kildare Tomorrow, As Temperature Warning Continues