Reuters reports:

KYIV – Russia struck Ukrainian ports on Tuesday, a day after pulling out of a U.N.-backed deal to let Kyiv export grain, and Moscow claimed gains on the ground in an area where Ukrainian officials said Russian forces were going back on the offensive.

Russia said it hit fuel storage in Odesa and a plant making seaborne drones there, as part of “mass revenge strikes” in retaliation for attacks by Ukraine that knocked out its road bridge to the occupied Crimean Peninsula.

Shortly after the bridge was hit on Monday, Moscow withdrew from a year-old U.N.-brokered grain export deal, a move the United Nations said risked creating hunger around the world.

Falling debris and blast waves damaged several homes and unspecified port infrastructure in one of Ukraine’s main ports, Odesa, according to Ukraine’s southern operational military command. Local authorities in Mykolaiv, another port, described a serious fire there.

The Russian attacks on ports provide “further proof that the country-terrorist wants to endanger the lives of 400 million people in various countries that depend on Ukrainian food exports”, said Andriy Yermak, the head of Ukraine’s presidential staff.

Ukraine’s air force said six Kalibr missiles and 31 out of 36 drones were shot down. Moscow, for its part, said it had foiled a Ukrainian drone strike on Crimea, with no major damage on the ground, and reopened a single lane of road traffic on the Crimea bridge.

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