Polls have closed in a run-off presidential election in Chile where voters are likely to hand former President Michelle Bachelet a fresh four-year term.

The centre-left leader is gunning for a landslide triumph to bolster her reform mandate. 

This was Chile's first presidential showdown between two women, voters are expected to give overwhelming backing to Ms Bachelet,

Ms Bachelet led the country from 2006 to 2010, impressed by her easy charm and plans to tackle deep income inequality. 

Her right-wing rival Evelyn Matthei has been weakened by her family's ties to the 1973-1990 military dictatorship of General Augusto Pinochet.

She has also been weakened by her post in the unpopular government of outgoing President Sebastian Pinera. 

In the first round of voting on 17 November, Ms Bachelet, a 62-year-old pediatrician by training, won nearly twice as many votes as Ms Matthei.

Ms Matthei, is a 60-year-old economist and former labour minister.

But Ms Bachelet fell just short of the 50% needed  to win outright, pushing the vote into a runoff.