Can leftist Gustavo Petro become Colombia’s first president?

Petro’s stance on tackling inequality, reducing reliance on carbon fuels and ending the status quo of right-wing politics, has appealed to a new generation eager for change.

Colombia goes to the polls on Sunday to choose the country’s first president since a historic peace deal was signed with the Revolutionary Armed Forces of Colombia (FARC) rebels.

The choice is between conservative candidate Ivan Duque, and his left-wing rival Gustavo Petro.

Petro has vowed to tackle inequality, but some fear his socialist policies could turn Colombia into another Venezuela.

Al Jazeera’s Andy Gallacher reports from Bogota.