Delegates are beginning to the gather inside the United Nations in New York for the meeting on the future sovereignty of the Falklands.
Argentine President Christina Kirchner is expected to call for the Falklands to be returned to Argentina.
Islanders have travelled to the UN to assert their right to self determination.
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The slump will spark scrutiny, especially as statistics show a rise in racially or religiously motivated offences following the EU vote.
The 53-year-old was killed shortly after leaving her home in Mosta, Prime Minister Joseph Muscat said.
Jordi Sanchez of the Catalan National Assembly and Jordi Cuixart of the Omnium Cultural group were jailed on Monday.