UNITED NATIONS (AP) — Nuclear experts from Iran and six world powers had “a useful meeting” in New York ahead of political talks next week aimed at reaching an agreement to limit Iran’s ability to produce nuclear weapons, the European Union said late Wednesday.

An EU spokesperson said the talks were aimed at “further deepening” knowledge on the issues, and contributed to preparations for the high-level political negotiations on a comprehensive agreement in Vienna starting May 13. The person spoke on condition of anonymity because he was not authorized to speak publicly on the talks.