Border guards of the 5th border detachment advanced group together with units of the Armed Forces of Ukraine have reached the line of the state border of Ukraine in Sumy region, National Security and Defense Council Secretary Oleksiy Danilov has said.

"On the seventh day of the war with the aggressive terrorist state Russia, the border guards of the 5th border detachment, together with units of the Armed Forces of Ukraine, have reached the line of the state border of Ukraine in Sumy region," Danilov wrote on Facebook on Thursday.