Hundreds of migrants smashed their way into Spain’s North African territory of Ceuta from Morocco early on Friday.
Officials estimated 500 people could have succeeded in entering the town.
They added many of the migrants were hurt along with members of the security forces as they stormed the border fence.
Once in Spain, migrants have the right to apply for asylum which if accepted would allow them to settle in the European country of their choice.
The massive entry comes as a dispute between Morocco and the European Union rages on the interpretation of a free trade agreement for agricultural products and fisheries.
The dispute has led to Morocco warning that it will no longer control the migratory flows of the enclave of Ceuta.
Back in December some 400 migrants were photographed storming a border fence to enter Ceuta from Morocco – the most in a decade.
The tiny Spanish enclaves of Ceuta and Melilla sit on the northern shores of Morocco’s Mediterranean coast.
Together they form the European Union’s only land borders with Africa.