The US-based Atlantic Council has been listed as a "security threat" in Russia and is set to be banned, Russian prosecutors have said.

US ambassador in Moscow, Jon Huntsman, chaired the pro-Western NGO between 2014 and 2017.

On Thursday, the prosecutors said the Atlantic Council's activities "pose a threat to fundamentals of constitutional order and security of the Russian federation."

They did not provide details on the move.

'We are disappointed'

Once the decision is processed by the nation's justice ministry, the think tank is set to join the likes of George Soros' Open Society Foundation on the banned international NGO list, which currently has 17 names. These organizations are prohibited from operating on Russian territory and Russian citizens are not allowed to work for them, according to Russian news outlet Meduza.

The Atlantic Council chairman Frederick Kempe said they were aware of the reports on their ban, but had received no notice from the Russian state.

"Russian authorities have not informed us, either formally or informally, about this decision," Kempe said in a statement carried by Russian news agency Interfax on Friday.

"We are disappointed by this decision and are studying its consequences," Kempe said.

Foreign agents and foreign money

The Atlantic Council was founded in 1961 to promote understanding among NATO member nations, and its headquarters are in currently in Washington DC.

Russia has moved against foreign NGOs in the years following the outbreak of Crimean crisis in 2014. Parallel to the push, Russian authorities have also used the strict "foreign agents" law to harass and pressure domestic activists receiving funding from abroad.

dj/msh (Reuters, Interfax)

Every evening, DW sends out a selection of the day's news and features. Sign up here.