VIENNA — Diplomats say the U.N. nuclear agency is to issue its latest report on Iran on Friday.

The confidential report will detail agency’s latest failed attempts to persuade Iran to cooperate in U.N. attempts to probe suspicions that Tehran has worked on components of a nuclear weapons program.

It is being issued just two days after a team from the International Atomic Energy Agency — the U.N. nuclear watchdog — returned from talks in Tehran. It was their second failed attempt within a month to persuade Iran to cooperate.

The report will be circulated among the 35-nation IAEA board when it meets starting March 5, as well as being sent to the U.N. Security Council.

Iran says it does not want nuclear arms.

The diplomats asked for anonymity because their information is confidential.