Hamilton The publisher of The New Republic, Hamilton Fish, has resigned amid allegations of sexual harassment.

The magazine’s owner, Win McCormack, wrote in a company memoFriday that Fish’s resignation was effective immediately and that an internal investigation would continue.

Fish, a former publisher of The Nation who joined The New Republic in 2016, has been placed on a leave of absence.

‘‘As I understand it, some employees, to my deep dismay, complained this week that my presence had led them to feel uncomfortable at The New Republic,’’ Fish wrote to McCormack in a memo Friday.