NEW YORK, Nov 10 (Reuters) - Industrial and Commercial Bank of China's hack left its U.S. unit temporarily owing Bank of New York Mellon $9 billion as a result of unsettled trades, prompting the parent to inject capital into the unit to settle the trades, sources familiar with the matter said.

BNY has since been paid back, the sources said.

(Reporting by Paritosh Bansal; editing by Megan Davies)