"Unannounced military inspections, the arms build-up in the Kaliningrad region and Russia's repeatedly stated plans for the deployment of Iskander missiles have always been a source of concern and worry for us. This is not contributing to the atmosphere of confidence and security," Vaidotas Linkus, spokesman for the defense minister, told BNS.
"The relevant authorities of our state are constantly exchanging intelligence information with other NATO nations and are closely following the situation at the borders of our country and the whole Alliance. We are not commenting on intelligence information," he added.
Estonia's new website Err.ee reported earlier in the day, citing an unnamed government source, that the Russian Baltic Fleet was moving an Iskander-M missile system from Ust-Luga to Kaliningrad on a civilian vessel.
It said that the ship, called the Ambal, was moving towards Kaliningrad and was expected to arrive in the exclave later on Friday.
Lithuania's military intelligence body said in a report published last March that a possible deployment of Iskander missiles to Kaliningrad would be potentially more dangerous for Lithuania due to its use for hindering moves by NATO allies in the region. According to the report, there is no necessity to use the system for destroying targets in Lithuania's territory, because existing capabilities would be theoretically sufficient for that.