Several Spanish regions toughened their coronavirus restrictions on Monday, seeking to curb a second wave of contagion that looks set to drive the country with Western Europe's highest case load above one million infections this week, Reuters reports.

Authorities in the northern region of Castile and Leon announced they would seal off the city of Burgos and nearby Aranda de Duero to all but essential travel from Tuesday night after infection rates in the area surpassed 500 cases per 100,000 people.

“We are in circumstances similar to those of March or April,” Burgos Mayor Daniel de la Rosa told state broadcaster TVE, recalling the beginning of the pandemic, when many Spaniards were confined to their homes to stop the spread.

Aragon, which was at the centre of several outbreaks linked to migrant agricultural workers over summer, introduced capacity limits at bars and restaurants and banned the sale of alcohol in shops between 10pm and 8am.