Wyoming governor signs measure prohibiting abortion pills

Wyoming Gov. Mark Gordon has signed into law the nation's first explicit ban on abortion pills since they became the predominant choice for abortion in the U.S. in recent years.

Gordon, a Republican, signed the bill Friday night while allowing a separate measure restricting abortion to become law without his signature.

The pills are already banned in 13 states that have blanket bans on all forms of abortion, and 15 states already have limited access to abortion pills. Until now, however, no state had passed a law specifically prohibiting such pills, according to the Guttmacher Institute, a research group that supports abortion rights.

A group seeking to open an abortion and women's health clinic in Casper said it was evaluating legal options.