Here are the latest developments involving negotiations between Iran and world powers in Vienna over the Islamic Republic's contested nuclear program (all times local):
Iran's Foreign Minister Mohammad Javad Zarif, speaking before the final meeting of negotiators at nuclear talks in Vienna, has praised their work.
Zarif said Tuesday: "I believe this is a historic moment. Today could have been the end of hope, but now we are starting a new chapter of hope."
Zarif also said acknowledged the final agreement wasn't perfect for any party, but said it helped end an "unnecessary crisis and ... open new horizons."
Nuclear negotiators in Vienna have sat down for their final meeting.
European Union foreign policy chief Federica Mogherini and Iran's Foreign Minister Mohammad Javad Zarif sat next to each other as photographers snapped images. Mogherini whispered at times to Zarif, smiling.
Mogherini said: "What we have in front of us today ... is the result of very hard work. ... I'd like to thank all of us sitting around this table."
She added: "It is a decision that can open the way to a new chapter in international relations. ... I think this is a sign of hope for the entire world."
Iran's state-run news agency is quoting the vice chairman of the Islamic Republic's parliament as lauding his country's nuclear negotiators.
IRNA is reporting Mohammad Hassan Aboutorabifard thanked the members of Iran's nuclear negotiation team for their effort to protect the country's interests.
Aboutorabifard was quoted Tuesday as saying: "The members of the negotiating team insisted on the rights of the nation encouraged by the guidelines provided to them by the Supreme Leader Ayatollah Ali Khamenei."
The deal between Iran and the world powers will approve limitations on Iran's nuclear program in exchange for the lifting of international sanctions.
The West long has suspected Iran's nuclear program has a military dimension, a charge Tehran denies.
Iranian state television is quoting Ali Akbar Salehi, the head of the country's nuclear program, as saying that the deal with world powers respects his country's "red lines."
Salehi made the comments Tuesday.
He was quoted as saying: "After a roadmap was signed today with the (United Nations' nuclear agency), all problems will be settled."
Yukiya Amano, the head of the U.N.'s International Atomic Energy Agency, earlier said a roadmap had been signed between his agency and Iran. It calls for his agency, with Iran's cooperation, to make an assessment of issues relating to possible military dimensions of the Islamic Republic's nuclear program by the end of 2015.
Pakistan hopes news of a deal over Iran's contested nuclear program will help it complete a gas pipeline linking it to the Islamic Republic.
Pakistan's National Security Adviser Sartaj Aziz said Tuesday he "welcomed" the deal.
Washington for years has opposed Pakistan's bid to import natural gas from Tehran. Pakistan needs the pipeline to supply power to its weak electrical grid.
A Pakistani defense analyst, retired Gen. Talat Masood, told The Associated Press: "Because of this agreement ... I think Washington will stop opposing the Iran-Pakistan gas pipeline project."