|Mining firm BHP Billiton has said that it is co-operating with a probe into possible violations of corruption laws during the 2008 Beijing Olympics.
Its comments came after the Australian Financial Review (AFR) reported that US and Australian authorities were looking into BHP's actions.
As a sponsor of the games, BHP provided gifts and hospitality to Chinese and other officials, the report alleges.
BHP, the world's largest miner, said its actions complied with the law.
"BHP Billiton is fully committed to operating with integrity and the group's policies specifically prohibit engaging in bribery in all its forms," BHP said in a statement.
Australian Federal Police confirmed it was involved in the investigation, along with the US Justice Department.
BHP supplied material for the gold, silver and bronze medals during the Olympic games.