Pakistan President Asif Ali Zardari was due in Tehran on Wednesday for discussions on a much-delayed gas pipeline deal which is opposed by the United States, Iranian media reported.
Zardari would meet with President Mahmoud Ahmadinejad and supreme leader Ayatollah Ali Khamenei during the one-day visit focused on the $7.5 billion project, which will see Iranian gas delivered to Pakistan, media reports said.
"The Pakistani president will meet with the supreme leader and the president after arriving in Tehran. The trip is aimed at deepening bilateral ties and also discussing regional and international issues which concern both nations," the Fars news agency reported.
"Bilateral energy projects including the Iran-Pakistan gas pipeline will also be discussed," it added.
The pipeline project has run into repeated difficulties -- Pakistan's difficulty in finding funds and due to opposition to the project by Washington, which has slapped Iran with a raft of sanctions due to its nuclear activities.
The Pakistani media had last year reported that Zardari would visit Iran in mid-December 2012, when a final agreement was to have been signed.