The three European powers, known as the E3, said in December they were ready to trigger a so-called "snap back" of all international sanctions on Iran to prevent it from acquiring a nuclear weapon.

The tension surrounding Iran’s nuclear program has led to a series of important diplomatic moves in recent days. On Thursday, Iran’s foreign minister announced that he was ready to travel to Europe for discussions regarding Tehran’s nuclear activities.

Negotiations between Iran and the United States over Tehran’s rapidly advancing nuclear program will return Saturday to the secluded sulta