The sale was arranged via Facebook marketplace.
A local was duped into selling a mobile phone for fake cash.
The incident occurred last Monday at around 12 noon outside Supervalue on the Dublin Road in Celbridge.
After making the exchange, the buyer fled the scene, leaving the seller with a number of fake €50 notes.
The sale was arranged via Facebook marketplace.
Gardai have advised locals to be careful when selling items online.

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