Ukrainian forces have struck a strategically important bridge in the southern part of the country, using what a Russia-appointed official said were rocket systems supplied by the United States.

The Antonivskyi Bridge crossing the Dnieper River was closed Wednesday following the Ukrainian strike.

Kirill Stremousov, deputy head of the Russia-appointed administration for the Kherson region, said the bridge was still standing after the late Tuesday strike, but that the road deck was full of holes.

Stremousov said Ukrainian forces used the High Mobility Artillery Rocket System (HIMARS) to carry out the strike.

The bridge is a key link allowing Russia to supply its forces in southern Ukraine.

Mykhailo Podolyak, an adviser to Ukrainian President Volodymyr Zelenskyy highlighted the bridge strikes in a tweet Wednesday, saying Russian forces should take them as a warning.

Podolyak said the Russians “should learn how to swim across” the river or “leave Kherson while it is still possible.”

Some information for this report came from The Associated Press and Reuters.