"However, it is clear from Mr Timerman's plans in the UK that the Falkland Islands are already on his agenda. We remain concerned about the Argentine government's behaviour towards the Falkland islanders, so it is right and proper that they are involved in the part of the meeting that concerns the islands.
"We have made that clear to the Argentine government in recent exchanges, and the Foreign Secretary's offer of a meeting on these terms still stands."
In a statement on Thursday, Mr Timerman said he was sorry that Mr Hague was unable to meet "without the supervision of the colonists from the Malvinas" - the Argentine name for the islands.
He invited Mr Hague to meet him in Buenos Aires, where he said "my fellow foreign ministers can freely meet with whomever they wish without being pressured or having their presence conditioned on meetings that they haven't asked for and don't interest them".
Argentine president Cristina Fernandez de Kirchner has in recent years strongly asserted her country's demands for the Falklands to come under its sovereignty despite the opposition of the islanders. Earlier this month, she had an advert published in British newspapers claiming that Argentina had been stripped of the islands in "a blatant exercise of 19th century colonialism".