David Cameron confronts Fernandez over Falkland Islands
David Cameron has refused to accept a letter from Argentina's president about her country's claim to the Falklands Islands.
The prime minister spoke to President Cristina Fernandez before the first session of the G20 summit, No 10 has said.
He said Ms Fernandez she should "respect the views" of islanders who are taking part in a referendum on the issue of control.
Nick Robinson reports.