The next round of Iran nuclear talks will be held in late January, 2011, in Istanbul, European Union (EU) foreign affairs chief Catherine Ashton announced here Tuesday after the Iranian nuclear talks.

Ashton said the parties had conducted "detailed and substantive talks focusing on the Iranian nuclear program and the need for Iran to comply with these international obligations."

"The countries I represent are united in seeking a resolution of the international communities' concerns regarding the Iranian nuclear program, which is the central purpose of these talks," she said.

"We recognize Iran's rights, but insist that it fulfills its obligations. We are ready to address and to seek common grounds also on other issues of mutual interests," she added.

The parties plan to discuss practical ideas on a cooperative basis towards the resolution of the issue next year in Istanbul.