LOS ANGELES (AP) — First lady Michelle Obama says the difficulties that military veterans face securing jobs are "unacceptable."

Obama spoke Wednesday to a crowd of 900 business executives, politicians and community leaders at the Unite for Veterans Summit in Los Angeles.

The first lady also said that ongoing work in Los Angeles is essential to the administration's goal of ending veteran homelessness by 2015.

She is on a two-day swing through the city that includes a political fundraiser at the home of an HBO executive and a Wednesday luncheon honoring music educators at the Grammy Museum.

The first lady's comments come the same day that a top federal official acknowledged scandals at hospitals serving veterans have undermined trust in the agency that provides them health care.