Some 37,500 of the roughly 50,000 people who crossed illegally into Ceuta since early Friday have already been returned to Morocco, as Madrid condemned the mass crossing as an "attack" on its sovereignty. #EuropeNews

Estimates suggest up to 2,000 have entered the Spanish territory in recent days in an attempt to reach Europe.

Estimates suggest up to 2,000 have entered the Spanish territory in recent days in an attempt to reach Europe.