The US is sending more Himars rockets to Ukraine as part of a new $100million (£80million) aid package, defence secretary Lloyd Austin announced on a surprise visit to Kyiv.

It will also send Stinger anti-aircraft missiles, Javelin anti-tank rockets and more than three million rounds of small arms ammunition.

The deal was agreed as Mr Austin visited Kyiv to “reaffirm the United States’ steadfast support for Ukraine”.

There has been months of increasing political division over support for Ukraine in the US, where Congress has refused to vote through an additional $60billion (£48.8billion) in funding requested by President Joe Biden.

National security adviser Jake Sullivan said earlier this month that Washington’s ability to support Kyiv is getting “harder and harder” with “each week that passes”.

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