The U.S. Supreme Court on Friday blocked new restrictions set by lower courts on a widely used abortion pill, delivering a victory to President Joe Biden's administration as it defends broad access to the drug in the latest fierce legal battle over reproductive rights in the United States.

The justices, in a brief order, granted emergency requests by the Justice Department and the pill's manufacturer Danco Laboratories to put on hold an April 7 preliminary injunction issued by U.S. District Judge Matthew Kacsmaryk in Texas. The judge's order would greatly limit the availability of mifepristone while litigation proceeds in a challenge by anti-abortion groups to its federal regulatory approval.

"As a result of the Supreme Court's stay, mifepristone remains available and approved for safe and effective use while we continue this fight in the courts," Biden said in a statement issued by the White House.