Estonia summoned Russia’s top diplomat after three Russian border guards crossed the Narva River in a hovercraft, patrolled a pier for about 20 minutes and returned, following initial reports that a hovercraft briefly entered Estonian waters.Interior Minister Igor Taro said the men did not pose a direct security threat, but police and the Border Guard have increased coastal patrols and monitoring amid an unclear operation and no reported casualties or arrests.Estonian officials linked the incursion to wider Baltic tensions, citing recent balloon alerts over a Lithuanian airport, Swedish navy comments about near-weekly submarine encounters and concerns about operations protecting a so-called “shadow fleet.”