Anti-abortion rights groups say they can reverse the abortion pill. That's fraud, some states say.

Some anti-abortion rights groups are selling a procedure called "abortion pill reversal," which they claim can help women halt medical abortions. That claim is now being challenged by state officials who allege the groups are veering into false advertising and fraud. 

Heartbeat International, an anti-abortion rights group, and 11 other anti-abortion organizations were sued Monday by New York Attorney General Letitia James, who alleged the organizations are making "false and misleading statements to advertise an unproven treatment." The complaint follows a similar lawsuit filed by California Attorney General Rob Bonta in September.

Heartbeat has countersued, asking the courts to throw out California's lawsuit on the grounds that it infringes its First Amendment rights. It also asserts that abortion pill reversal is safe and effective.