At Liberty University’s commencement on Saturday, former president Jimmy Carter spoke out against sex-selective abortions.

While delivering the commencement address to graduates at the Christian school in Lynchburg, Virginia, Carter said Christians must take action to stop unborn girls from being systematically killed in the womb, especially in countries like China, where sons are considered better than daughters.

At about the one-hour, 15-minute mark into the commencement video, Carter said the biggest challenge that needs to be overcome is discrimination against girls and women in the world.

“There are 160 million women who are not living today,” he said, “because their parents, in order to comply with laws or customs to have just male sons, kill their daughters by either strangling them at birth or they have the modern-day ability to decide before the baby is born what it’s going to be. And if the fetus is female, then they abort the child.”

Carter then condemned human trafficking, which disproportionately affects women.

“A girl who has brown skin or black skin can be sold, according to The New York Times, to a brothel owner for about $1,000,” he said. “And the brothel owner makes about $35,000 for these forced brothel prostitutes.”

Carter still teaches Sunday school at the Baptist church he attends in Georgia.

h/t: Stoyan Zaimov, Christian Post