Philadelphia area police departments are warning parents about some certain sweets.

It's "pot candy"... and it's actually made with ground up marijuana mixed with sugar and formed into rock-like confections.

Upper Merion, Montgomery County police say they found were given this particular batch by a suspicious mother who wanted it tested. It came back postiive for marijuana.

They're advising parents to be suspicious of bags of unwrapped candies, especially those that look like Jolly Ranchers.