Russia’s Defense Ministry said its military had conducted the strike at 11.40 a.m. Moscow time (3.40 a.m. ET).

“The Armed Forces of the Russian Federation launched a high-precision missile attack on a hangar in the industrial port district of Odesa, where preparations were underway for the combat use of unmanned boats of the armed forces of Ukraine. The target of the strike has been achieved. The object is hit,” it said in a statement, without mentioning Zelensky or Mitsotakis.

Russia has stepped up its strikes on the region in recent days, and on Saturday a Russian drone attack on an apartment block in the city killed 12 people, including five children, Ukrainian officials said.

Zelensky said the attack pressed home the need to further strengthen the country’s air defenses.

He has often argued that Western leaders need to visit Ukraine to understand the reality of Russia’s ongoing aggression.

Speaking after Wednesday’s strike, Zelensky said he had welcomed Mitsotakis to “honor the memory” of those killed in Sunday’s attack and urged his allies to provide more support.

“The world has enough air defense systems and the ability to produce weapons for defense,” he said in his daily address. “Weapons are needed here to save lives. Solutions are needed now – not some day, but for the people who endure terrorist attacks every day and night.”

In Washington, where President Joe Biden’s $60 billion request for aid for Ukraine has stalled, the White House said the strike was another sign the war-torn country needed more military assistance, and used it to pressure House Speaker Mike Johnson to bring up a vote on the package.

“This strike is yet another reminder of how Russia is continuing to attack Ukraine recklessly every single day and of Ukraine’s urgent needs, in particular, for air defense interceptors,” a National Security Council spokesperson said. “We again call on the House of Representatives to take action to support Ukraine so that we can provide the Ukrainian armed forces with the equipment they desperately need to defend against these outrageous Russian attacks.”

European Council President Charles Michel condemned the strike as “another sign of Russia’s cowardly tactics” he said were “below even the Kremlin’s playbook.”

In May 2022, Michel was visiting Odesa when Russia fired 10 cruise missiles at the region.