A Russian investigator said on Monday that Ukraine had struck and damaged a third bridge over the Seym river in Russia’s Kursk region a day earlier, where Moscow’s troops have been battling Kyiv’s forces for nearly two weeks.

“On August 18, as a result of targeted shelling with the use of rocket and artillery weapons against residential buildings and civilian infrastructure in the Karyzh village…a third bridge over the Seym river was damaged,” a representative for Russia’s Investigative Committee said.

Russian forces have been fighting Ukrainian troops in Kursk region since Aug. 6, when thousands of Kyiv’s troops smashed through Russia’s western border in a major embarrassment for the Russian military top brass.

The Russian foreign ministry said on Friday that Ukraine had used Western rockets, likely U.S.-made HIMARS, to destroy a bridge over the Seym river in the Glushkovo district.