Portuguese police cleared housing protest camps in Lisbon and Porto early on Sunday and arrested more than 30 people. Officers removed at least 100 tents in Lisbon and about 50 in Porto. In Barcelona, police detained 128 people after 23 shops were damaged. Italy sent 500 extra soldiers to Milan.
Why it matters: Protests over housing and living costs are spreading across southern Europe, and governments are responding with more police and new laws.