Pakistan and Iran have stood by each other in hard moments".
Zarif's visit came days before the expected arrival of US Secretary of State Michael Pompeo in Pakistan on September 5.
"Timely and proactive cooperation by Iran in providing such access facilitates implementation of the Additional Protocol and enhances confidence", it said.
After his return from Pakistan last month, Mr Sidhu said, there was controversy in India, but the new Pakistan prime minister said "they want peace".
The Pakistani foreign minister said his country attaches great importance to removal of impediments to expansion of ties.
"Islamabad does not have that political clout, and Pakistan's own relations with the United States are hanging with a fragile thread that could break any moment", said geopolitical analyst, Qamar Cheema.
Pakistan's new Prime Minister Imran Khan today paid his first visit to the army headquarters in the garrison city of Rawalpindi where he was given a detailed briefing on the security issues, threat spectrum and response. In addition, security collaboration along the troubled Pakistan-Iran border, military cooperation and counterterrorism were among the key issues he discussed with the Gen. Bajwa.