The US state of Arkansas will ban all abortions from August unless there is a medical emergency. Governor Asa Hutchinson Tuesday signed the strictest abortion law currently in place in the United States.

Like many similar laws in predominantly conservative states, the new Arkansas law is an attempt by the Republican Party to end women’s right to have an abortion. That right has been constitutionally protected in the United States since the Roe versus Wade lawsuit in 1973.

Arkansas abortion law also prohibits fetal drift if conception occurred through rape or incest. Arkansas goes further than other states like South Carolina, where abortion has recently been banned from six weeks of pregnancy.

Alabama wanted to impose far-reaching restrictions in 2019 by making abortions a criminal offence for doctors when the mother’s life is not at stake. However, a federal court stopped that measure.

The civil rights organization ACLU announced almost immediately on Tuesday that it would legally challenge Arkansas’s abortion law. Governor Hutchinson, to court, the Arkansas ACLU branch wrote on Twitter.

Hutchinson has said that he would have preferred to see exceptions in cases of rape and incest, but that he signed the bill after all because it has a lot of support in the Arkansas state parliament. The governor acknowledged that the new abortion law goes against a binding Supreme Court ruling, “but the intention with this law is to allow the Supreme Court to invalidate the current case law.”