Supreme National Security Council (SNSC) Secretary Ali Larijani left Tehran for Vienna Tuesday to hold talks with IAEA officials on Iran's peaceful nuclear activities.

Larijani, heading a delegation, is scheduled to meet with Director-General of the International Atomic Energy Agency (IAEA) Mohamed ElBaradei on Tuesday (today).

Larijani will also discuss a recent proposal of ElBaradei for simultaneous suspension of enrichment activities by Iran and implementation of UN Security Council Resolution 1737.

UN Security Council Resolution 1737, passed on December 23, calls on Iran to suspend all enrichment activities and implement the Additional Protocol of the Non-Proliferation Treaty (NPT).