The party said in a statement that the country should return to international negotiations and create trust about its nuclear program and refrain from what it described as adventurist policies.
The UN Security Council approved limited sanctions on Iran in late December over its refusal to halt uranium enrichment.
The International Atomic Energy Agency (IAEA) has criticized Iranian officials for their failure to disclose key aspects of their nuclear efforts.
Iran has repeatedly rejected accusations, most consistently from Washington, that it is seeking to develop nuclear weapons.