Ukraine’s military confirmed that it had struck two bridges connecting Russian-occupied Crimea to the rest of Ukraine on Sunday, part of a broader pattern of attacks on and around the peninsula aimed at scrambling critical supply routes for the Kremlin as Kyiv’s forces press a counteroffensive.

The Ukrainian Army said in a statement that it hit “two key logistics routes” — the Chonhar and Henichesk road bridges — on Sunday afternoon.

One of the strikes tore three holes in the roadway of the Chonhar bridge, which links Crimea to the Russian-occupied part of the Kherson region, forcing it to close to traffic, according to the Russian-backed governor for the region, Vladimir Saldo. Sunday’s attacks also injured a driver and closed traffic on the Henichesk bridge, to the east of Chonhar, he added.

The extent of the damage could not be independently verified.

Ukraine has targeted the Chonhar bridge before. The Crimean Peninsula, illegally annexed in 2014, is important to Russia’s control over occupied territories in southern and eastern Ukraine. It has increasingly become a target of strikes, and in recent weeks Ukraine’s military has started to claim responsibility — a departure from a previous policy of not explicitly acknowledging its participation in attacks in Crimea.

The strikes come as Ukrainian forces are waging a slow and bloody counteroffensive to recapture Russian-occupied land in the south and east.

New York Times News Service