Tom DiNapoli’s visit was sponsored by a group with financial ties to Israel Bonds, an investment vehicle that has become an issue in his primary.

A New York state oversight board raised ethics concerns about a trip by state Comptroller Tom DiNapoli to Israel that a local pro-Israel Jewish group sponsored.

The revelation comes amid renewed scrutiny of DiNapoli’s spending spree on Israel Bonds, a financial instrument that directly funds the state of Israel. DiNapoli, the administrator of New York pension funds, is facing his first primary fight in 18 years as comptroller, and the branded, non-tradeable assets have become an issue in the race.

The trip was paid for by the Jewish Community Relations Council of New York, which has a financial relationship to Israel Bonds, the organization that issues Israeli government debt securities in the U.S.