Argentina: First lady wins presidential poll

Argentina's first lady Cristina Fernandez de Kirchner swept to victory in the presidential vote.

She is the first woman elected to lead the country.

"We've won by a wide margin," she said.

Exit polls and early official results showed her with enough support to take a first-round victory and avoid a runoff election.

There were cheers on Sunday when Fernandez appeared on stage with husband President Nestor Kirchner, while dozens of supporters celebrated in the streets.