The US is to allow Ukraine to produce Patriot surface-to-air missiles, Donald Trump has announced.

The development is expected to significantly bolster Ukraine's air defences against Russian strikes.

The Patriots are highly effective against ballistic missiles, but their production times are lengthy, which could limit their impact.

The licence was granted despite concerns over supply chain challenges and the potential for the US to divert its own missile production capacity.

Ukraine has been urging the US to provide more advanced weapons systems, including the Patriot missile system, as the conflict with Russia continues.

The US has already provided Ukraine with significant military aid, including HIMARS rocket systems, which have been instrumental in pushing Russian forces back.

The licence for Ukraine to produce the Patriot missiles is seen as a major step forward in the country's efforts to defend against Russian attacks.

President Trump said the decision was made after 'extensive discussions' with Ukrainian officials and would 'significantly enhance Ukraine's air defences'.

Ukraine to boost air defences with new licence