TOKYO, Jan 11 (Reuters) - Japan's Ministry of Finance is striving to extend the duration of government bond (JGBholdings to correct heavy issuance of short-term JGBs issued to fund steps against the COVID-19 pandemic since 2020, a top ministry official said on Wednesday.

MOF Financial Bureau chief Michio Saito also said interest rates remain low but the current situation will not last indefinitely, as seen in spikes in overseas bond market yields. (Reporting by Tetsushi Kajimoto Editing by Chris Reese)