Spain's Foreign Minister José Manuel Albares said on Tuesday that his country "is not changing a single comma" in its claim to sovereignty over Gibraltar, after signing in Brussels the agreement between the European Union and the United Kingdom to regulate the situation of the territory after Brexit.

"Article 2 makes it very clear that Spain is not changing a single comma of its sovereignty claim, that we continue to assert sovereignty and that our position remains exactly the same," Albares told reporters after the signing.

The last stretch of the border fence, the Verja, will be demolished this Wednesday; the top Spanish diplomat described it as "the last frontier in continental Europe".

Albares argued that the agreement safeguards Spain’s position on sovereignty over 'the Rock' and at the same time allows progress in cooperation in day-to-day coexistence with Gibraltar.

"We protect that claim and, above all, we are making a spectacular leap into the future in terms of cooperation and coexistence," he stressed.