Ukrainian President Volodymyr Zelensky on Wednesday urged the North Atlantic Treaty Organization to step up weapons supplies on his first visit to its headquarters since the start of Russia's all-out war.

Zelensky made the plea as Ukraine's European allies announced Wednesday the latest package of military aid to Kyiv, $123 million worth of counter-offensive equipment and anti-drone systems.

"How to survive during this next winter for us is big," Zelensky said as he addressed the media with NATO chief Jens Stoltenberg before meeting alliance defense ministers.

"We are preparing, we are ready. Now we need some support from the leaders. That's why I'm here today," he said.

"We will stand by you provide support to Ukraine, because this is really important for the whole of NATO," Stoltenberg told Zelensky.

"The war in Ukraine has our attention, and Ukraine has our full support," Dutch defense minister Kajsa Ollongren said ahead of the talks between Zelensky and his Western supporters in Brussels.

Meanwhile, the fresh military aid will help Ukrainian soldiers cross minefields and bridge rivers and trenches, Britain's Ministry of Defense said.

It will also comprise heavy duty plant vehicles to destroy Russian non-explosive obstacles and help Ukraine build defensive positions to protect critical national infrastructure, it added.

The announcement of the new package of assistance coincides with the dispatch of 70 million pounds worth of MSI-DS Terrahawk Paladin platform, which can track and destroy drones and protect infrastructure, according to MoD.

Britain's recently appointed Defense Secretary Grant Shapps said the new air defense systems would help protect civilians from Russia's "barbaric bombing campaign" against Ukraine.

Funding for the procurement of the said equipment comes from the
London-administered International Fund for Ukraine to which Britain, Denmark, Norway, Netherlands, Sweden, Iceland and Lithuania contribute.

Meanwhile, the eastern Ukraine town of Avdiivka was under heavy Russian shelling Tuesday as Moscow's forces try to retake the place.

"Our Avdiivka is under massive attacks by Russian artillery and aviation," presidential aide Andriy Yermak later said on social media.

"Our defenders repelled all enemy attacks and prevented the loss of lines and positions," it said.

Russian forces control territory to the south, east and north of Avdiivka.