INTERNATIONAL Trade Secretary Liz Truss faced mounting calls to resign today after she admitted to once again breaching the law by awarding arms licences to Saudi Arabia.

Ms Truss told Parliament that an internal review of all licences granted for Saudi Arabia and its coalition partners since the Court of Appeal ruling in June is ongoing and has so far identified one further breach.

The licence for the repair of military equipment, in particular counter-IED equipment, was never used and has been revoked, according to the Department for International Trade.

A licence breach of a commitment given to Parliament was also identified through the export of fuel gauges for Jordanian military aircraft — also now revoked.

In June, the Court of Appeal ruled that the government acted unlawfully when it licenced the sale of British-made arms to Saudi forces without assessing whether the the Saudi-led coalition had violated international humanitarian law in the course of the Yemen conflict.

Earlier this month, the government apologised to the Court of Appeal for two “inadvertent” breaches of an assurance it would not license any more arms sales to Saudi Arabia for the use in the conflict in Yemen.

Ms Truss said it is “possible that more cases will come to light” after announcing an independent investigation has been commissioned.

Campaign Against Arms Trade (CAAT), which won the case against the government, called for an “immediate embargo” on all arms sales to Saudi Arabia and the wider coalition.

CAAT’s Andrew Smith said: “We are always being told how rigorous and robust arms export controls supposedly are, but this shows that nothing could be further from the truth.

“The system is clearly broken and unfit for purpose. This is symptomatic of a policy that puts arms sales ahead of human rights.

“Even if it was in error, it is clear that the government cannot be trusted to uphold the ruling of the Court of Appeal. There can be no more excuses.

“Tens of thousands of people have been killed in a war that has created the worst humanitarian crisis in the world. Despite the destruction, the government has shown a total disregard for the people of Yemen.”

Since the bombing of Yemen began in March 2015, Britain has licensed £5.3 billion worth of arms to the Saudi regime, though actual figures are likely to be higher.

Scottish National Party (SNP) MP Chris Law, a member of the international trade committee, accused the government of putting “profit ahead of upholding international humanitarian law.”

Shadow trade secretary Barry Gardiner said: “This is shocking. The government has failed to carry out its duty of care in a conflict where thousands of people have died.

“The government repeatedly claims that we have a robust and rigorous arms control regime. But the best rules are useless unless you implement them.

“Given the Secretary of State’s admission that further breaches may well follow, we now need a root and branch review to establish a dedicated committee with the necessary powers to ensure that the proper control is exercised.”