Venezuela's Hugo Chavez dies aged 58
Mr Chavez had been seriously ill with cancer for more than a year, undergoing several operations in Cuba, and had not been seen in public for several months.
Foreign Minister Elias Jose Jaua Milano declared seven days of mourning and said Mr Chavez's body would lie in state until his funeral on Friday.
Vice-President Nicolas Maduro would assume the presidency until an election was held within 30 days, Mr Jaua added.
Mr Chavez's illness prevented him from taking the oath of office after he was re-elected for a third term in October and the President of the National Assembly, Diosdado Cabello, had been expected by some to take over as interim president in the event of his death, Kazinform quotes BBC News.
However, he was not among the political and military leaders who flanked the vice-president when he announced Mr Chavez's death.
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