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. Last Updated: 07/27/2016

Russia Says U.S. Silent Over Iran

Boris Yeltsin's chief of staff said Friday that the United States had not provided evidence to prove its allegation that several scientific institutes were helping Iran build mass destruction weapons.

The United States sanctioned three Russian institutes earlier this week, accusing them of leaking weapons technologies to Iran.

But Nikolai Bordyuzha, who is the chief of staff to the Russian president, said U.S. officials had no intention of substantiating their claims because they didn't want to "bust their sources."

"We have proposed a concrete, constructive dialogue. ... But they are not presenting any documents and are effectively refusing to take part in such an investigation," Bordyuzha said, according to the Interfax news agency.

The United States says it has provided detailed information to the Russians on multiple occasions, though it does not intend to reveal its sources because it would put them at risk.

Bordyuzha said that Russia's security services had investigated the three scientific institutes and found nothing to support the U.S. claims, Itar-Tass reported.

Russia is helping Iran build a nuclear power plant, but both countries say it is solely for peaceful purposes. Iran says that it has no intention of building weapons of mass destruction.

Meanwhile, the chairman of parliament's upper house, Yegor Stroyev, accused the United States on Friday of trying to isolate Russia from the rest of the world "politically, economically and intellectually" by placing sanctions on the scientific institutes.

"Russia will never put up with an attempt to hold it hostage through the use of force by any country in the world," he was quoted as saying by Interfax.