In video clips, police can be seen trying to round up migrants as thousands emerged from the sea, climbed rocks and scaled a border fence to enter the Spanish territory.
It comes as the EU’s campaign to vaccinate 450 million people in its member states got off to a difficult start.
An investigation is under way into how the three female lions and one male contracted COVID-19.
The woman, a lifeguard, can be seen trying to escape capture by police before being handcuffed and taken away.
Late night bars in the Balearic Islands will also have to close their doors at 1am in a bid to reduce the outbreak.
Spain has been added to the list of countries where people have to self-isolate when they return to the UK, but what does that actually mean for holidaymakers?
Coronavirus cases increase in holiday hotspots as the country welcomes millions of tourists from across the world.
The two-week trial that begins on Monday comes before the archipelago and the rest of Spain reopens to international tourism on July 1.
Prince Joachim, 10th in line to the throne in Belgium, tested positive for coronavirus after attending a party in Spain.
Spain is rolling back restrictions that helped bring the coronavirus outbreak under control and save hospitals from collapse.
Spanish prime Minister Pedro Sánchez said on Saturday that children will be allowed to leave their homes from 27 April.
The coronavirus has claimed at least 15,843 lives in Spain and infected 152,446 people, but both the rate of contagion and mortality are dropping.