New Delhi, March 9 -- Two teenagers mistakenly left a knapsack containing marijuana and cash at a donation area outside a New Zealand charity shop then returned in a panic to retrieve the bag, police said Monday.

A volunteer at the store noticed a pungent aroma before opening the knapsack and finding plastic bags of marijuana amounting to 43.2 grams (1.5 ounces) and 3,700 New Zealand dollars ($2,200) in banknotes, New Zealand Police said in a statement.

Using marijuana recreationally and selling the drug are illegal in New Zealand. Some medical use is allowed with a doctor's prescription.

Police said the episode happened Feb. 18 in the Southland region of the South Island. A spokesperson wouldn't give more details of the shop's locatio...