Two Russian fighter jets that violated Swedish airspace earlier this month 'were equipped with NUKES with the aim of scaring Stockholm' after Putin had threatened military action if Sweden or Finland joined NATO.
"The violation of Swedish territory lasted for about a minute.
The country's air force deployed two JAS 39 Gripen which took pictures of the intruders.
It was then, say Swedish media, that it was confirmed the Russian planes were equipped with nuclear warheads.
'This is a signal to Sweden that we have nuclear weapons and we could also consider using them,' military strategic expert Stefan Ring told TV4 Nyheter.
'We assess it as a conscious action. Which is very serious especially as [Russia] is a warring country,' added Air Force Chief Carl-Johan Edström.
'I can not rule out incorrect navigation, but everything indicates that it was a deliberate act. That they violated Sweden's borders.'
The incident came days after Russian President Vladimir Putin had threatened military action against Sweden and neighboring Finland should either join NATO.
The countries had been conducting joint military exercises at the time. "