Reuters Russia could be storing nuclear weapons at a recently renovated underground bunker in the Kaliningrad region roughly 30 miles from the Polish border, according to a report released by a nuclear watchdog on Monday. The findings show the bunker is now an active site. This will likely increase concerns about Moscow's nuclear activities in the region at a time of heightened tensions between NATO and the Kremlin. Russia could be storing nuclear weapons at a recently renovated underground bunker in the Kaliningrad region roughly 30 miles from the Polish border, according to a report released by a nuclear watchdog on Monday. Satellite images showed the site being excavated beginning back in 2016, renovated, and then covered in 2018, which suggests it could be returning to operational status, according to the report from the Federation of American Scientists.See the rest of the story at Business InsiderNOW WATCH: This top economist has a radical plan to change the way Americans voteSee Also:FBI agents said Bernie Sanders is an 'idiot like Trump' and worried his supporters would hurt Hillary Clinton's campaignRudy Giuliani and James Comey don't get along.