Partygoers hid under mattresses and in a wardrobe at a packed house in Madrid on Saturday in an attempt to avoid police at one of 227 illegal parties raided in the city over the weekend for breaches of Covid-19 restrictions.
Police video showed the hiding revelers, who were arrested.
Another raid took place a bar which was not complying with restrictions to try and contain the spread of the virus.
"227 illegal parties have been detected in Madrid on Friday and Saturday. People were not complying with the curfew, not using masks or were in premises without any security measures," Madrid's Municipal Police force said.
"We keep asking you for collaboration and responsibility."
Madrid has the second highest two-week infection rate in Spain at 427 cases per 100,000 people on Friday (February 19), while the national rate is 294, a marked decline from 900 at the end of January.