More than a thousand illegal African migrants have landed in the Spanish Canary Islands in the last 48 hours, an influx not seen in at least 10 years, according to the Red Cross.

African migrants have recently turned to the Canary Islands after agreements with Turkey, Morocco and Libya tightened control over the Mediterranean route to Europe's shores.

Spain's cabinet was to meet on Friday to discuss imposing a state of emergency in Madrid after judges overturned a partial lockdown that was opposed by the regional authorities.

Facing resurgent virus infections, Spain's government will on Wednesday unveil a recovery plan aimed at yanking the country out of its worst economic slump in decades.

Spain's government published a decree extending drastic restrictions across the capital on Thursday, with partial lockdown measures to come into play within 48 hours, despite fierce opposition from Madrid's regional authorities.

After a tense standoff lasting days, the government of Socialist Prime Minister Pedro Sanchez on Wednesday evening said it had reached agreement with most of Spain's regions on the imposition of tough restrictions in areas where the virus is spreading rapidly. 

Spain's former king Juan Carlos, at the centre of an alleged $100-million corruption scandal, has reportedly fled to the Dominican Republic after his shock announcement he was going into exile.

For days now, Spain's daily coronavirus death toll has been on hold, generating widespread uncertainty about the real state of the epidemic that has claimed more than 27,000 lives.

People arriving in Spain will face a mandatory 14-day quarantine to slow the spread of the coronavirus, the government announced on Tuesday. 

Spain on Monday counted another 331 new virus deaths, with the overnight toll rising by several dozen from its lowest level in more than a month.

In Spain, one of the hardest-hit countries in the pandemic, the coronavirus spread quickly and widely without being detected, especially among the elderly, experts told AFP.

Spain saw a slight increase in the daily death toll from novel coronavirus on Tuesday, with 430 people dying in the past 24 hours, health ministry data showed.