Hundreds of thousands of people took to the streets of Catalonia’s capital Barcelona on Sunday to express their opposition to declaring independence from Spain, showing how divided the region is on the issue, Euractiv.com reports.

A crowd estimated by local police to number 350,000 waved Spanish and Catalan flags and carried banners saying “Catalonia is Spain” and “Together we are stronger”. They poured into the city centre after politicians on both sides hardened their positions in the country’s worst political crisis for decades.

Spanish Prime Minister Mariano Rajoy said on Saturday he would not rule out removing Catalonia’s government and calling a fresh local election if it claimed independence, as well as suspending the wealthy region’s existing autonomous status.