It appears there have been at least two explosions.
Several are dead, several are injured and total evacuations of nearby towns are underway due to extreme radiation levels being tested by bordering countries. Our own military and intelligence agencies are participating in countless meetings to review data, intelligence and evidence.
At issue is the work Russia is performing by placing a new nuclear reactor on hypersonic missiles and testing a jet propulsion system.
Remember, Vladimir Putin told the world about this several months ago.
The center of these operations is in Sarov, Russia, hosting a facility that somewhat emulates our own Los Alamos. This is not a new secret city as during the height of the Cold War, it was known to the United States as Arzamas-16. At this location, a nuclear powered cruise missile is being developed and tested called the Burevestnik. NATO refers to it as the SCC-X-Skyfall.
Russian authorities admitted that radiation levels in the city of Severodvinsk were up to 16x the normal rate after a nuclear reactor exploded last week. Five nuclear scientists died in the blast. Iodine was quickly distributed to panicked residents but supplies are now empty.
Russia has several nuclear cities (per NTI) so look for activity in other locations due to these explosions, at least our own intelligence agencies will be doing that.
Sarov (location of VNIIEF-Federal Nuclear Center and Avangard Electromechanical Plant). Formerly known as Arzamas-16.
Snezhinsk (location of VNIITF-Federal Nuclear Center). Formerly known as Chelyabinsk-70.
Zarechnyy (location of Start Production Association). Formerly known as Penza-19.
Novouralsk (location of Ural Electrochemical Combine). Formerly known as Sverdlovsk-44.
Lesnoy (location of Elektrokhimpribor Combine). Formerly know as Sverdlovsk-45.
Ozersk (location of Mayak Production Association). Formerly known as Chelyabinsk-65.
Trekhgornyy (location of Instrument Making Plant). Formerly know as Zlatoust-36.
Seversk (location of Siberian Chemical Combine). Formerly know as Tomsk-7.
Zheleznogorsk (location of Mining and Chemical Combine). Formerly known as Krasnoyarsk-26.
Zelenogorsk (location of Electrochemical Plant). Formerly known as Krasnoyarsk-45.