The strike caused delays to public transport on Wednesday morning. Schools and universities were also closed.
Incidents involving burning tyres and roadblocks were also reported in the morning.
The strike stems from the housing crisis, which has led to demonstrations across Spain in recent months and prompted Prime Minister Pedro Sánchez to call an election for November 29.
“We will not stop until we have fundamentally changed the country's housing model, so that housing is there to live in and not just for a minority,” a spokesman for the Madrid Tenants' Association told Reuters when the strike began at midnight.
The strike is supported by the country's two largest unions, UGT and CCOO.








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