Russian state news agency Tass reported five explosions rocking Kherson on Tuesday morning — blasts likely caused by air defense systems at work.

The Ukrainian military’s Operation Command South also reported destroying a pontoon crossing the Dnieper that the Russian forces were setting up and hitting a dozen command posts in several areas of the Kherson region with artillery fire.

“The most important thing is Ukrainian artillery’s work on the bridges, which the Russian military can no longer use,” Ukrainian independent military analyst Oleh Zhdanov told The Associated Press.

“Even the barges have been destroyed. The Russians can’t sustain forces near Kherson — this is the most important.”