The Texas law, signed by Republican Governor Greg Abbott in May, prohibits abortions once medical professionals can detect cardiac activity, usually around six weeks and before most women know they’re pregnant.

A deeply divided Supreme Court is allowing a Texas law that bans most abortions to remain in force, for now stripping most women of the right to an abortion in the nation’s second-largest state.

The court voted 5-4 to deny an emergency appeal from abortion providers and others that sought to block enforcement of the law that went into effect Wednesday. But the justices also suggested that Wednesday's order likely isn't the last word on whether the law can stand because other challenges to it can still be brought.

It is the strictest law against abortion rights in the United States since the high court’s landmark Roe v. Wade decision in 1973 and part of a broader push by Republicans nationwide to impose new restrictions on abortion. At least 12 other states have enacted bans early in pregnancy, but all have been blocked from going into effect.

Chief Justice John Roberts dissented along with the court's three liberal justices: Justice Stephen Breyer, Justice Sonia Sotomayor and Justice Elena Kagan. Each of the four dissenting justices wrote separate statements underscoring their disagreement with the majority.