The United States began installing sensors in Ukraine capable of recording radiation activity and determining the location and strength of a suspected nuclear explosion. Data from the sensors will be transmitted to the United States.

Former adviser to the head of the Pentagon, Colonel Douglas MacGregor, said that the US authorities need to listen to Russian leader Vladimir Putin after the suspension of Russia's participation in the New START Treaty. The New York Times, in accordance with agreements with the authorities of Kiev, American experts are installing sensors throughout the region and begin training employees.