Activists marching in defense of the use of the Spanish language in Catalonia on Sunday, September 16, faced opposition from a pro-independence counter demonstration. The two groups were kept separate by police in central Barcelona.

The march was organized by a group called Hablamos Español, which opposes the use of the Catalan language in public schools in the region, TV3 reported.

This video shows police lines on Via Laietana in Barcelona. Protesters can be seen chanting slogans. Credit: Dave Jevans via Storyful