Psaki reported that the military attache of the U.S. Embassy in Russia took part in the trip of foreign military experts to the Rostov region to scrutinize evidence of the incident. According to the results of this trip the U.S. State Department claims that the evidence presented by Russia "were not conclusive."
Earlier, the Russian Defense Ministry in Moscow invited accredited military attaches from 18 countries to study the situation in the Rostov region on the border with Ukraine, particularly in Donetsk and the eponymous border checkpoint, which was damaged by artillery and mortar fire allegedly from the Ukrainian territory.
The Kremlin media reported that a bomb allegedly fired from the territory of Ukraine hit a house in the city of Donetsk in the Rostov region of Russia on July 13. The shelling killed a man, one woman was seriously injured. Russian Foreign Ministry has threatened Ukraine with "irreversible consequences". The Ukrainian Foreign Ministry said that the Russian statements about shelling of the territory of the Russian Federation have no basis, and stressed that not only the citizens of Ukraine but also the citizens of Russia suffer the actions of the pro-Russian terrorists.