On January 3, Russian air defenses downed an object flying over the Rostov Oblast located near Ukraine which had been the site of suspected drone attacks.
A spate of mysterious objects in the sky requiring military intervention has followed on the heels of a similarly unexplained incident in Russia last month.
On Sunday, the U.S. Air Force downed an unidentified flying object (UFO) over Lake Huron in Michigan, near the Canadian border.
The previous day, an object flying over Alaska was shot down. On Friday, a U.S. fighter jet shot downed an object over northern Canada.
Meanwhile, on February 4, a suspected Chinese surveillance balloon was downed over North Carolina after flying across the U.S. earlier that week.
American officials said the object had been used to spy on sensitive sites, although Beijing has denied this and it has increased tensions between China and the U.
