Tehran: Iran and a team from the UN nuclear watchdog started a fresh round of talks in Tehran on Monday to resolve doubts about Iran’s nuclear programme.

The International Atomic Energy Agency (IAEA) delegation arrived in Iran's capital on Sunday, less than a week after a US intelligence report said Iran halted its nuclear weapons programme in 2003.

Iran denies ever having had such a military programme but welcomed the report that contradicted the US administration's assertions that Tehran was actively working on a nuclear bomb.

Iran and the IAEA agreed in August on a timetable to answer outstanding questions about nuclear activities which Tehran says are aimed at generating electricity.

Previous rounds of talks dealt with centrifuges used to enrich uranium and other issues. The new talks are expected to focus on questions about particles of arms-grade enriched uranium found by IAEA inspectors at Tehran's Technical University.