The intrusion occurred last month. Although defense analysts have said Russia is the likely culprit, Swedish authorities say it's "impossible" to say whose submarine it was.
Israel's foreign minister says diplomacy is "more complicated than ... furniture from Ikea." His Swedish counterpart responds that diplomacy, like Ikea furniture, needs "a partner ... [and] a manual."
Stockholm has a grainy photo of what it says shows "foreign underwater activity" in an incident eerily similar to the grounding of a Soviet submarine in the same waters in 1981.
It all started in 1997, when two professors from the Karolinska Institute in Stockholm published an article on flatulence titled "Nitric Oxide and inflammation: The answer is blowing in the wind."
Breathalyzers were placed in the doorway of a nightclub in Stockholm this weekend, with an unusual purpose: to ensure no guests had been drinking any booze.
Small amounts of the drugs that people take end up in wastewater and then in streams and rivers. It's usually not enough to harm the health of humans who swim in or drink the water. But there is growing evidence that pharmaceuticals in wastewater may affect wildlife.