Vienna, Jun 30, IRNA -- German Foreign Minister Frank-Walter Steinmeier will return to Vienna later Tuesday to rejoin a final round of talks
aimed at finally settling the row over Iran's nuclear program, German journalist sources told IRNA in the Austrian capital.

Steinmeier has repeatedly voiced optimism over the past days that the Iranian nuclear issue could be resolved following a 12-year-old dispute.

Talks are expected to go into extra-time as top diplomats from all seven countries (the US, Russia, China, France, Britain, Germany, Iran) are

hammering out the text of a final comprehensive agreement.

By IRNA