Lubbock voters on Saturday backed a “sanctuary city for the unborn” ordinance that tries to outlaw abortions in the city’s limits, likely prompting a lawsuit over what opponents say is an unconstitutional ban on the procedure.

The unofficial vote, 62% for and 38% against the measure, comes less than a year after Planned Parenthood opened a clinic in Lubbock and months after the City Council rejected the ordinance on legal grounds and warned it could tee up a costly court fight.

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The Lubbock ordinance outlaws abortions within the city, and allows family members of a person who has an abortion to sue the provider and anyone who assists someone getting an abortion, like by driving them to a clinic.

There isn’t an exception for women pregnant as a result of rape or incest.

The ordinance would not be enforced by the government unless the Supreme Court overturned the landmark Roe v. Wade decision, or made other changes to abortion laws.

It instead relies on private citizens filing lawsuits.