VIENNA, May 28: The UN nuclear watchdog said in a confidential report on Friday it had found traces of high and low enriched uranium on Libyan nuclear centrifuges.

The International Atomic Energy Agency (IAEA) said in the report that a university in Tripoli had "a research laboratory and associated equipment that would be of some use for supporting nuclear weapon related research and development".

However, the agency said it had found no evidence that Libya had begun building a nuclear warhead. The UN watchdog said Libya had "provided prompt, unhindered access to all locations requested by the agency and to all relevant equipment and material declared to be in Libya". Libya has provided clear answers to most of the IAEA's questions, it said. -Reuters