The rule, which affects American non-governmental organizations working abroad, is one that incoming presidents have used to signal their positions on abortion rights
A women's reproductive health advocacy group says officials in Sonora are denying an abortion to a 13-year-old girl raped by a family acquaintance.
Some of the laws limit when and how the procedure can be performed. Others restrict what can be done with tissue from aborted fetuses.
The crisis is putting pressure on Church doctrine that bans all forms of contraception, and has even stoked a debate over abortion in many conservative Latin American nations.
In a letter, Francis allowed all rank-and-file priests to grant absolution during the Holy Year of Mercy he has proclaimed, which runs Dec. 8, 2015 until Nov. 20, 2016.