Former Colombian President Alvaro Uribe and Medellin's mayor Federico Gutierrez lead hundreds of people in march to reject the questioned election in Venezuela in which President Nicolas Maduro was claimed reelection for a third term. "There is no negotiation with a dictatorship that has stolen freedom and the right of Venezuelans to express themselves through the ballot box," says ex-president Uribe. "We must have the strength to get rid of this dictatorship." IMAGES AND SOUNDBITES