Russian troops carried out 40 shelling attacks on border areas and settlements in Ukraine's northeastern Sumy region on July 13, with 90 explosions recorded.
The Commander of the National Guard of Ukraine, Brigadier General Oleksandr Pivnenko, has inspected the fortifications of Ukrainian positions in the Sumy region.
President Volodymyr Zelensky spoke about working with partners to provide Kharkiv, Donetsk, Sumy and other regions with more basic defence - air defence systems and long-range weapons.