The Sun has posted an advert in a Buenos Aires newspaper to "hit back" at the Argentine president over her letter about the Falkland Islands to David Cameron.
The newspaper's response, published in Spanish and English, was addressed to President Cristina Fernandez de Kirchner.
The Sun claims, in an open letter in today's Buenos Aires Herald, that Britain has had sovereignty in the Falklands before Argentina even existed.
More top news
Big companies will have to show that their supply chains do not use child slave labour or exploit people, David Cameron has announced.
Disneyland Paris is reportedly facing a pricing probe amid claims it charges British tourists more than its French customers.
Overworked GPs are becoming so tired they could be putting patient's safety at risk, the head of British general practitioners has warned.