After two unsuccessful attempts to increase its capital reserves, Doral-based U.S. Century Bank announced Friday it had secured investors to provide a $65 million capital injection.

The bulk of the money—about $41 million—will come from an even split between private equity firms Patriot Financial Partners L.P. in Philadelphia and Prime Capital in New York. Private investors and other equity firms will provide the remaining $24 million. Bank executives said they reserved 10 percent of the transaction for existing shareholders.