A young Stroud man got a rock instead of rock and roll.

South Simcoe Police say the man purchased a guitar through the popular online buy and sell site, Kijiji.

The seller, purported to be from Nova Scotia, was sent $1000 for the guitar.

When the package arrived, the outside of the box said it was a guitar, but it only contained shipping material and a large rock.

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Investigators are looking to see if the package was tampered with during shipping or if it was indeed a scam, police say.

South Simcoe Police urge buyers to be cautious when using online buy and sell sites.

"Meet in a public place to make your purchase,” said Const. Rich Williamson. "A mall, a coffee shop, even the parking lot of the police station is available. In addition, make sure the item is exactly what you want before handing over any money."

Williamson also suggested sellers take cash only, as many of these frauds involve fraudulent cheques.