Under the amendment, lawmakers could prohibit abortion “after fetal viability,” or when a child could survive outside its mother’s uterus, generally at around 24 weeks of pregnancy. The state would be prohibited from doing so, however, in cases where a doctor determined that an abortion was necessary to protect the mother’s “life or health.”

Schnurr in his letter said the proposal is an “extraordinary and dangerous attempt to radically reshape Ohio through a constitutional amendment that does nothing to aid women or promote life.”

“As Catholics, we are morally obliged to uphold the dignity of life of all vulnerable humans — immigrants, the poor, preborn children,” Schnurr wrote. “We cannot remain silent on a direct ballot question like the one in November.”

The archbishop urged Catholics to pray for the amendment’s defeat, to raise awareness of the measure, and to vote against the initiative in the Nov. 7 general election.

“Beyond that, we must continue our commitment to caring for women, children, and families,” Schnurr said, calling also on the intercessions of St. Mary and St. Joseph for the state of Ohio.

The campaign to include the abortion measure on the November ballot was led by the pro-abortion group Ohioans for Reproductive Freedom. The group said last month it was aiming to counteract what it called “draconian reproductive health care policies imposed by extremists.”