A Russian spy plane reportedly flew over Chicago on Aug. 13 at a high altitude, according to a local news report.
The planes are unarmed but carry surveillance and monitoring equipment.
When the plane flew over Chicago, it flew at about 36,000 feet, according to the report.
Naval Station Great Lakes is located near the route where the plane flew. It is the largest training installation and is home to the Navy’s only Boot Camp.
A Russian military spokesperson said, “U.S. specialists on board will monitor the use of surveillance equipment and compliance with the provisions of the agreement.”
An aviation expert said that the Russian spy plane’s excursion over Chicago may have been due to weather.
“It may have been avoiding storms,” said Ian Petchenik of FlightRadar24, according to the broadcaster.
Moscow has also used the treaty at military sites along the East Coast.
In February, a U.S. Air Force spy plane partook in an observation flight over Russia.
Russian Plane Flies Over Area 51
A Russian aircraft flew over Area 51 in southern Nevada as part of the Open Skies Treaty, according to a report in April.The Drive reported that a Tu-154M was captured flying over several military bases in the western United States, including the infamous Area 51. The flight occurred on March 28, starting at Travis Air Force Base in California.
The Russian plane then went to Yucca Flat, a nuclear test site.
“It then headed over the pockmarked Nevada Test Site. Area 51 sits just to the east of this location. The aircraft’s panoramic cameras can collect fairly wide swathes of imagery along the Open Skies aircraft’s flight path,” The Drive reported.
Near the Nevada Test Site is Area 51, located to the east. The plane’s aircraft is able to gather a large area of images along the flight path.
Later, it flew to the Tonopah Test Range before going to Salt Lake, Utah.
The Open Skies Treaty went into effect during January 2002 and includes 34 party states.
Area 51 is a U.S. Air Force facility in a remote area within the Nevada Test and Training Range. The base’s purpose is currently unknown.
The CIA declassified a 400-page document in 2017 about the secret facility.