Former Argentine President Nestor Kirchner died Wednesday after suffering heart attacks, state television reported.

The husband of Argentina's President Cristina Fernandez succumbed heart trouble as the couple waited in their home in the Patagonian city of Calafate to be counted in the nation's census. Fernandez was at his side when he died, state television reported.

Kirchner, 60, had undergone an antioplasty after a heart attack in September.

Kirchner a likely candidate in next year's presidential elections, was secretary general of the South American alliance known as Unasur and also served as a congressman and leader of the Peronist party.

There was no immediate confirmation of his death from the presidency, but the news immediately had great impact in Argentina.

"A great patriot has died," said Juan Carlos Dante Gullo, a ruling party congressman, to state TV. "This will leave a huge hole in Argentine politics. We will have to follow his example. Argentina has lost one of its greatest men."

Kirchner brought Argentina out of severe economic crisis before being replaced in office by his wife.