VIENNA (Reuters) -- The UN nuclear watchdog said on Friday it had agreed with Iran on how to resolve remaining issues regarding the country's past plutonium experiments following two days of talks in Tehran.

The agency also said it had agreed with Iran a visit of its inspectors to Iran's heavy water research reactor by the end of July and how to deal with safeguards at the Natanz uranium enrichment plant by early August. In June, Iran and the agency agreed to draw up an "action plan" on how to resolve questions about the country's nuclear program. IAEA deputy director Olli Heinonen met Javad Vaeedi, Iran's deputy nuclear negotiator, and Mohammad Saeedi, deputy head of Iran's Atomic Energy Organization, on Wednesday and Thursday in the Iranian capital to discuss the plan. The IAEA said it would meet Iran representatives in Vienna in July to finalize the work plan on remaining issues. Another meeting dedicated to Iran's past plutonium experiments would be held in Iran in early August, the agency added.