WASHINGTON - The United States will send additional non-lethal military support to Ukraine, US Defense Secretary Chuck Hagel said on Thursday, in the latest US move to reassure allies following Russia's annexation of Crimea and a buildup of Russian forces on the Ukrainian border.

"Earlier this morning I called Ukraine's acting defense minister to tell him that President Obama has approved additional non-lethal military assistance for health and welfare items and other supplies," Hagel said, speaking at a Pentagon news conference after talks with Polish Defense Minister Tomasz Siemoniak.

The new support follows NATO's announcement on Wednesday that it would send more ships, planes and troops to eastern Europe "within days." NATO has made clear it will not intervene militarily in Ukraine, which is not a NATO member.

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