IRONORE/ Sector major BHP Group BHP.AX, Rio Tinto RIO.AX and Fortescue Metals FMG.AX fell between 0.5% and 0.8%. Feb 9 (Reuters) - Australian shares fell on Thursday, with miners leading the decline, as worries around the Reserve Bank of Australia's (RBA) hawkish comments persisted, while the country's top power producer AGL Energy slumped more than 8%. The RBA earlier this week reiterated that further rate increases would be needed to tame inflation, surprising markets by the hawkish tone and shattering expectations of an imminent pause to the tightening campaign.