TOKYO, Jan 30 (Reuters) - Sumitomo Mitsui Financial Group, Mitsubishi UFJ Financial Group and Mizuho Financial Group will lend Nippon Steel a combined $16 billion for its planned acquisition of U.S. Steel , Bloomberg reported on Tuesday.

Citing several unnamed sources, Bloomberg said the three Japanese megabanks had extended a commitment letter to Nippon Steel for the dollar-denominated loans. (Reporting by Satoshi Sugiyama Editing by Chang-Ran Kim)