Update 1:20am: Argentina reminded Brazil of its commitment "to not allow British airplanes or warships based in the disputed archipelagos" in accordance with agreements among member nations of the regional blocs Mercosur and Unasur.

British Labour leader Jeremy Corbyn supports dialogue “without pre-conditions” with Argentina over the future of the Falkland Islands, a senior party source has said.

Britain is to deploy two RAF Chinook transport helicopters to help bolster the defence of the Falkland Islands amid renewed fears of a fresh Argentine invasion of the islands.