Police are questioning the crew of the MS Thor Liberty after what were described as 69 Patriot anti-missile missiles were found aboard.
Interior Minister Paivi Rasanen said the missiles were marked "fireworks".
The MS Thor Liberty had docked in the Finnish port of Kotka after leaving Germany last week.
Dock workers became suspicious after finding explosives poorly stored on open pallets, and the missiles were then found in containers marked "fireworks".
The managing director of the ship's owner, Thorco Shipping, expressed surprise. Thomas Mikkelsen told AFP news agency from Denmark that he was unaware of the matter.
Another company official, speaking on condition of anonymity, confirmed the ship had been detained in Finland and said the missiles could have been loaded on to the vessel by mistake, AFP adds.(emphasis added)
Now, who has "misplaced" 69 Patriot missiles and how much was earned in doing so.
And who played the double agent in this "surprise discovery?"
UPDATE: CNN reports Patriot missiles found on a ship bound for Asia were being sent legally. Belong to South Korea, they say.
Doesn't explain reported "surprise" of shipping company, labeling of "fireworks" - does it? Although, given the nature of first reports, perhaps it does . . .