The Supreme Court did not take action early Wednesday on a request to block a Texas law prohibiting most abortions after about six weeks of pregnancy, allowing the most restrictive abortion law in the nation to go into effect.

The law, known as Senate Bill 8, amounts to a nearly complete ban on abortion in Texas, one that will further fuel legal and political battles over the future of Roe v. Wade, the 1973 decision that established a constitutional right to abortion. The law makes no exceptions for pregnancies resulting from incest or rape.

An emergency application from abortion providers seeking to block the law remains pending, and the court is expected to rule on it shortly.

In the application, abortion providers wrote that the law “would immediately and catastrophically reduce abortion access in Texas, barring care for at least 85 percent of Texas abortion patients (those who are six weeks pregnant or greater) and likely forcing many abortion clinics ultimately to close.”