Alabama Governor Kay Ivey has signed a bill to ban all abortions in the state, even in cases of sexual abuse.
This is the latest bid by US political conservatives challenging the landmark 1973 Supreme Court decision – Roe v Wade – that established an American woman’s right to terminate her pregnancy.
US abortion-rights activists had already vowed to go court to block enforcement of the Alabama measure, which ranks as the nation’s strictest anti-abortion law.
The decision by Governor Ivey, a Republican who opposes abortion, came a day after the Republican-controlled state Senate approved the abortion ban.
“To the bill’s many supporters, this legislation stands as a powerful testament to Alabamians’ deeply held belief that every life is precious and that every life is a sacred gift from God,” Ms Ivey said in a statement.
“To all Alabamians, I assure you that we will continue to follow the rule of law.”
As passed on Wednesday, the law would take effect in six months.
It includes exceptions only to safeguard the health of the mother.
Legislation to restrict abortion rights has been introduced this year in 16 states, four of whose governors have signed bills banning abortion if a foetal heartbeat can be detected.