SACRAMENTO, Calif. (AP) _ Gov. Jerry Brown is challenging a federal court order that California further reduce its inmate population to improve prison conditions, reigniting a legal battle that already once reached the U.S. Supreme Court.

Complying with the court's June deadline for lowering the prison population would endanger public safety, Brown contends in court filings seeking to overturn the deadline and the court's population cap.

``The overcrowding and health care conditions cited by this Court to support its population reduction order are now a distant memory,'' the administration argued in its court filings overnight Monday. ``California's vastly improved prison health care system now provides inmates with superior care that far exceeds the minimum requirements of the Constitution.''

The cap was imposed in 2009 after federal judges blamed crowding for causing conditions so dismal that they violated inmates' constitutional rights and resulted in the death of an average of one inmate each week due to neglect or poor care. The judges gave the state until June to reduce the population of California's 33 adult prisons by about 33,000 inmates, to a total of 110,000 inmates.

The decision was upheld by the U.S. Supreme Court in 2011, and so far the federal judges have said they will not consider raising the cap.

That didn't deter the state from making the attempt.

``Any further federally ordered reduction of the California prison population is unnecessary and a threat to public safety,'' Jeffrey Beard, the new secretary of the Department of Corrections and Rehabilitation, said in a statement provided to The Associated Press.

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