The presidents of Iran and Indonesia have opened a summit of eight mainly Muslim nations, with the standoff over Tehran's nuclear ambitions likely to overshadow trade talks.

During opening remarks on the Indonesian island of Bali Saturday, Iranian President Mahmoud Ahmadinejad and his Indonesian counterpart, Susilo Bambang Yudhoyono, urged participating nations to cooperate more with one another. They did not mention the nuclear issue.

Aside from Indonesia and Iran, the group known as the Developing Eight (D-8) includes Pakistan, Turkey, Malaysia, Egypt, Bangladesh and Nigeria.

The talks are intended to center on trade and development. But focus on those issues may be diverted by concerns about a tense international standoff over Iran's nuclear program.

Malaysian Foreign Minister Syed Hamid Albar said Saturday after meeting with Mr. Ahmadinejad that diplomacy is the best way to resolve the dispute. He also warned that parties involved should not create another nuclear crisis.

Some information for this report was provided by AFP, AP and Reuters.