Washington (CNN) The FBI and Department of Homeland Security warned of the terror threats Iran poses to the US in a joint intelligence bulletin sent to law enforcement throughout the country on Wednesday.

In the bulletin, which was obtained by CNN, the agencies predicted Iran could take immediate steps to attack the US in cyberspace, and noted that Iran has a history of attempting assassinations and planting operatives in the US to conduct surveillance for terror attacks.

The bulletin does not name any specific or credible threat, and an FBI spokesperson reiterated Wednesday that the agency was not aware of one.

"In the event [Iran] were to determine to conduct a Homeland attack, potential targets and methods of attack in the Homeland could range from cyber operations, to targeted assassinations of individuals deemed threats to the Iranian regime, to sabotage of public or private infrastructure, including US military bases, oil and gas facilities, and public landmarks," the agencies wrote.

"[US government] actions may also provoke violent extremist supporters of [Iran] to commit attacks in retribution, with little to no warning, against US-based Iranian dissidents, Jewish, Israeli, and Saudi individuals and interests, and [US government] personnel," they said.

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