Gov. Charlie Baker has put the brakes on a $1 billion expansion of the Boston Convention and Exhibition Center.

Administration officials announced on Wednesday they would not be issuing bonds authorized last year by the Legislature for the project, which was aimed at increasing the operating space of the South Boston facility by more than 50 percent and attracting larger conventions in the future.

Secretary of Administration and Finance Kristen Lepore

cited financial concerns for Baker's decision to hold off on the expansion. She added that the convention center had failed to live up to its previous projections for filling hotel rooms.

Baker also named several members to the board overseeing the convention center and Lepore said the reconstituted board could revisit the expansion plans in the future.