OKLAHOMA CITY — Oklahoma Gov. Kevin Stitt signed a bill into law on Tuesday that makes it a felony to perform an abortion, punishable by up to 10 years in prison, as part of an aggressive push in Republican-led states across the country to scale back abortion rights.

The bill, which takes effect 90 days after the Legislature adjourns next month, makes an exception only for an abortion performed to save the life of the mother. Abortion rights advocates say the bill signed by the GOP governor is certain to face a legal challenge.