If US representatives negotiate in Pakistan for 'America First,' it is highly likely an agreement beneficial to both sides and the world could be reached, Iran's First Vice President Mohammad Reza Aref  wrote in a social media post.

But if US representatives went for 'Israel First,' no agreement would be reached during Saturday's talks in Islamabad, he warned, adding that Iran will inevitably continue its defense even more vigorously than before, and the world will face greater costs.