O'Brien compared abortion to the 1996 Dunblane massacre, in a sermon marking the anniversary of the 1967 Abortion Act, The London Telegraph said Thursday.
He said pro-choice politicians could not expect to remain full members of the Catholic Church, and implied that abortion is a worse tragedy than the murder of 16 children in a Scottish school, the newspaper said.
"We are killing -- in our country -- the equivalent of a classroom of kids every single day," he said. "Can you imagine that? Two Dunblane massacres a day in our country going on and on. And when's it going to stop?"
The sermon was delivered at St. Mary's Cathedral in Edinburgh.
Benedict Cumberbatch's dramatic reading of R. Kelly lyrics is just what you need
Couple mistakenly served bag of cash at McDonald's drive-thru