Crowds of opposing demonstrators clashed outside a school in Los Angeles, on June 2, over a scheduled Pride event.

This footage, filmed by Kelly Stuart, shows supporters and opponents of a Pride month assembly gathered outside the school prompting police to step in and separate the sides.

Officers were on the scene to “facilitate a peaceful and lawful exercise of constitutional rights,” the Los Angeles Police Department said on Twitter.

According to local news reports the controversy began with an announcement that for Pride month, teachers at Saticoy Elementary would read students Mary Hoffman’s book “The Great Big Book of Families", which highlights diversity.

However, the Los Angeles Times reported that a group of outraged parents launched an Instagram page urging other parents to boycott the assembly.

According to the report, the Los Angeles Unified School District said in a statement it was committed to “creating a safe and inclusive learning environment that embraces the diversity of the communities we serve.” Credit: Kelly Stuart via Storyful