Tehran: Iran will hold a second round of talks with UN nuclear watchdog officials in Tehran on August 6 on an "action plan" to defuse suspicions of a covert atom bomb programme, a senior Iranian official said yesterday.

Iran says it aims to produce nuclear fuel for electricity. Western powers are mistrustful, based on Iran's past concealment of sensitive atomic research and a failure to cooperate fully with UN inquiries into the scope of the programme.

After initial talks last month, Tehran allowed International Atomic Energy Agency inspectors to revisit the Arak heavy-water site. Tehran had cut off access in April to protest at UN sanctions imposed over its refusal to halt atom work.

An IAEA official said the monitors who visited the Arak reactor, which is still under construction, were given full access by Iranian officials and met no obstacles.

"The IAEA team will arrive for further talks on Monday and they will stay for up to six days," the Iranian official said on condition of anonymity.