In a significant move, Iran's Foreign Ministry on Sunday joined the country's Parliament in labeling the US Army and Central Intelligence Agency as terrorist organisations.

"The label of terrorist is suitable for the military and security forces of the United States," Ministry spokesman Mohammad Ali Hosseini told reporters in his weekly brief.

The motion comes after a US Senate resolution on Wednesday which called for Iran's Revolutionary Guard to be labelled a terrorist organization.

Hosseini said the resolution was an “unprecedented act'' and giving any indication to this issue is “a threat and danger to global peace and security,'' which would “weaken international bodies.''