IOC President Thomas Bach says Boston failed to deliver on "promises" made to U.S. Olympic leaders when they selected the city as the American candidate for the 2024 Games.

Bach gave his first extensive comments Wednesday on the demise of the Boston bid, which was dropped Monday amid poor public support, strong local opposition and lack of full political commitment.

Bach said the IOC has a "commitment" from the U.S. Olympic Committee that it will put forward a bid for 2024, though he declined to endorse any other city. Los Angeles is considered the USOC's likely choice ahead of the Sept. 15 deadline for official submission of candidates.