President Obama’s administration expressed concern over the sale of S-300 missiles to Iran. Photo: ZOA.org.

Despite a ban on arms shipments to Iran under international sanctions, Russia appears willing to proceed with the sale of advanced S-300 surface-to-air missiles to the country — in a development triggering objections from the Obama administration.

“We have long expressed our concerns over reports of the possible sale of this missile system to the Iranians,” Pentagon spokesman Capt. Jeff Davis told Fox News.

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