The UK’s decision to suspend the export of some arms to Israel has sparked a diplomatic row between London and Washington.

David Lammy, the Foreign Secretary, told MPs on Monday that a two-month review had found a “clear risk” that UK arms may be used in violations of international humanitarian law.

Around 30 of 350 licences will be suspended, Mr Lammy said, before insisting that “this is not a blanket ban, this is not an arms embargo”.

The White House responded saying it felt let down by the decision. “They assured us they wouldn’t do this,” a Washington source told ITV’s Robert Peston.

But a source inside the foreign office told the Telegraph that the US had been informed of the decision before it was announced on Monday.

Benjamin Netanyahu reacted furiously to the UK government’s “shameful” decision but vowed to win Israel’s war against Hamas “with or without British arms”. 

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