Madrid officials are frantically competing to get out of the massive snowstorm over the weekend in the Spanish capital, in a race against falling temperatures.
Four people died on Friday and Saturday when up to 20 centimeters of snow fell on the city and its environs, including two who died frozen, the BBC said in a report on Monday.
Officials fear the cold period will freeze snow piles in the city and create even more dangerous conditions.
With the temperature now falling below 20 degrees overnight, the Spanish government has intensified cleaning: it has sent about 3,500 tons of salt by road to the capital.
Spanish officials have also deployed police to escort convoys to ensure 300,000 coronavirus vaccines are delivered to the city despite the winter storm.
As many as 700 major roads in and around Madrid remained blocked, the BBC said.
The snowstorm was the worst to hit Spain since a 1971 snowstorm that fell to 20 inches of snow across the country.