The Sun after the British Prime Minister David Cameron rejected calls for negotiations on the Malvinas Islands (Falklands).
The campaigners set fire to copies of the paper, over its warning to Argentinian President Cristina Fernandez de Kirchner to keep her “hands off” the disputed Islands.
In her stringent letter to Cameron on January 3, Kirchner had urged Britain to “end colonialism” and to hand back the Malvinas to Argentina.
Fernandez also noted that the Malvinas are 8,700 miles away from London and that the Royal Navy expelled the Argentinians who originally lived on the territory and replaced them with British settlers.
Kirchner called the replacement a "blatant exercise in nineteenth-century colonialism", suggesting that asking current residents of the islands about their sovereignty as Britain desires is not a legitimate way to decide their fate.
However, Cameron later rejected her call for negotiations saying the residents must determine the future of the islands themselves.
A referendum on the Malvinas status is due to take place in March.
Argentinian protesters have burned the British flag and a copy of British newspaper