Lord Cameron has said the UK will not suspend arms exports to Israel despite “grave concerns” about humanitarian access to Gaza.

The foreign secretary said he had reviewed the latest legal advice on whether Israel had breached humanitarian law in its war against Hamas.

He said the “ultimate judgment” was that export licenses “will continue.”

He also rejected calls to make the recommendation public, saying non-disclosure was an “important principle.”

He also warned that the UK and US may need to start considering a “Plan B” for a conflict between Israel and Hamas if current strategies don’t work and Rafah is attacked.

“We have a very clear plan A on how to end this conflict,” he told reporters at a news conference in Washington, D.C.

“We have a temporary ceasefire, we transform it into a sustainable ceasefire, we see the Hamas leadership driven out of Gaza, we see the terrorist infrastructure dismantled. That’s how the political process to end a war works.

“But we have to realize that if this doesn’t work, we have to think about what is plan B, what can humanitarian organizations and other organizations do to make sure that if there is conflict in Rafah, people are able to access safety, they are able, they can access food , water, medicine, and keeping people safe.

“I think that’s something we have to think about and discuss today.”