Britain says only Gibraltar, UK people can decide future

British Foreign Secretary Boris Johnson, left, speaks with Luxembourg's Foreign Minister Jean Asselborn during a meeting of EU foreign ministers at the EU Council building in Luxembourg on Monday, April, 2017. European Union foreign ministers meet Monday to discuss the situation in Syria and Libya. (AP Photo/Virginia Mayo) (The Associated Press)

British Foreign Secretary Boris Johnson, right, and UK permanent representative to the EU Tim Barrow, left, walk by European Union High Representative Federica Mogherini during a meeting of EU foreign ministers at the EU Council building in Luxembourg on Monday, April, 2017. European Union foreign ministers meet Monday to discuss the situation in Syria and Libya. (AP Photo/Virginia Mayo) (The Associated Press)

Luxembourg's Foreign Minister Jean Asselborn, second left, speaks with, from left, Malta's Foreign Minister George Vella, Dutch Foreign Minister Bert Koenders and Slovakian Foreign Minister Miroslav Lajcak during a meeting of EU foreign ministers at the EU Council building in Luxembourg on Monday, April, 2017. European Union foreign ministers meet Monday to discuss the situation in Syria and Libya. (AP Photo/Virginia Mayo) (The Associated Press)

British Foreign Secretary Boris Johnson says Gibraltar's status can only be changed by the territory's people and U.K. citizens, as the enclave becomes an issue in Brexit negotiations.

Johnson said Monday that Gibraltar's sovereignty "is not going to change and cannot conceivably change without the express support and consent of the people of Gibraltar and the United Kingdom."

He spoke in Luxembourg where EU foreign ministers are meeting. Britain's departure from the European Union, likely in 2019, is not on the agenda.

Spanish Foreign Minister Alfonso Dastis told Sunday's El Pais newspaper that Madrid insists it should get a veto over any agreements regarding the strategic enclave on Spain's southern tip, as Britain prepares to leave.