South Korea and Singapore have intercepted suspected nuclear and weapons materials bound for Iran that breach UN sanctions imposed on the Islamic republic, diplomats said yesterday.

The two seizures, made in the past six months but only revealed now, add to a growing list of alleged Iranian attempts to breach an international arms embargo, which are bringing mounting pressure to tighten sanctions, they said.

“South Korea authorities found more than 400 suspicious tubes in a jet cargo at Seoul airport in December,” one diplomat said, giving details from a report to the UN Iran sanctions committee.

The tubes could be used for nuclear facilities, the diplomat said, speaking on condition of anonymity because the seizures have not been made public.

“In September, aluminium powder that can be used for rockets was found on a ship in Singapore harbour,” the diplomat added.

In each case the product was destined for Iran.

The details were confirmed by a second envoy at the UN who said the sanctions committee would study them when it discusses the latest report from Iran experts monitoring the sanctions regime.

“This is going to add to calls for at least tighter implementation of the current sanctions,” said the envoy, also speaking on condition of anonymity. “There are still too many countries not applying the measures.”

The United Nations has passed four rounds of sanctions against Iran for its refusal to halt uranium enrichment, including a global arms embargo.

Western nations accuse Iran of seeking a nuclear bomb while Iran insists its enrichment program is for purely civilian purposes.

Over the past year a growing number of cases of weapons and explosives seizures involving Iran have been brought before the UN sanctions committee.

Up to seven tons of RDX high explosive were found on a ship in an Italian port in September that was going from Iran to Syria.

And Nigerian agents seized 13 containers of weapons, including rockets and grenades, in Lagos port in October.

The containers were loaded at the Iranian port of Bandar Abbas and were reportedly destined for separatist rebels in Senegal’s Casamances region. Senegal has since broken diplomatic ties with Tehran.

Britain said this month that arms seized by its special forces in Afghanistan on February 5 were being supplied by Iran to the Taliban militia fighting international forces.

British Foreign Secretary William Hague condemned what he called Iran’s “completely unacceptable” actions.

The pressure will likely increase after Israel this week accused Iran of supplying weapons found on a ship intercepted by naval commandos as it headed for the Hamas-run Palestinian territory of Gaza. Iran has denied the claim.

Sign up to our free newsletters

Get the best updates straight to your inbox:
Please select at least one mailing list.

You can unsubscribe at any time by clicking the link in the footer of our emails. We use Mailchimp as our marketing platform. By subscribing, you acknowledge that your information will be transferred to Mailchimp for processing.