Montreal police broke up a ruckus Tuesday night during a abortion-rights protest at McGill University.

Dozens of protestors showed up at the Leacock building in an attempt to drown out a speech by Jojo Ruba of the Canadian Centre for Bio-Ethical Reform.

A group called Choose Life brought him in to give his presentation, which included graphic photos of abortions.

Opponents warned there would be trouble, and police moved in to make the arrests.

Police detained at least two protesters but later released them without charge.