TEHRAN – Pakistan again stepped up its diplomatic efforts to cool down escalating tensions in Middle East, with Interior Minister Mohsin Naqvi arriving in Tehran for high-level talks as Islamabad seeks to help revive negotiations between US and Iran. The visit is being closely watched as Pakistan continues to position itself as a bridge between Tehran and Washington. Naqvi, who has become a key channel in Pakistan’s mediation efforts, is making his sixth visit to Iran as part of Islamabad’s diplomatic engagement. For Pakistan, Naqvi’s Tehran mission represents another high-level attempt to encourage dialogue, contain tensions and keep diplomatic channels open between Iran and the United States. The coming meetings could therefore prove important as Islamabad intensifies its behind-the-scenes diplomatic efforts at a time when the Middle East remains on edge.