April 28 (Reuters) - Cleveland-Cliffs ( CLF ), a major

customer of Norfolk Southern ( NSC ), has backed activist

investor Ancora Holdings Group in its effort to overhaul the

board of the railway company, Bloomberg News reported on Sunday.

Cleveland-Cliffs ( CLF ) is supporting Ancora's campaign to have

seven directors and a new chief executive officer installed at

Norfolk Southern ( NSC ), the report said, citing a letter.

(Reporting by Gnaneshwar Rajan in Bengaluru)