Thieves in Canada have stolen millions of dollars worth of highly prized maple syrup from a storage facility, Quebec police have said.

The Federation of Quebec Maple Syrup Producers noticed that barrels supposed to contain the sugary liquid were empty after an inventory check.

The theft took place at their warehouse in St-Louis-de-Blandford, 160km (100 miles) north-east of Montreal.

Police say it is unclear exactly how much of the expensive syrup was stolen.

Some 3.4 million litres of bulk maple syrup was stored in the warehouse, with a value of up to CAN$30m (£19m).

If the entire warehouse's contents were stolen, it would represent more than a tenth of Quebec's 2012 harvest

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