Uribe ran Colombia between 2002 and 2010. The focus of his political platform was tackling the Farc rebel group, a paramilitary guerrilla formation that had been waging a bloody insurgency for decades.
According to multiple media reports, the explosive was found hidden in a lamp and it is believed that it could have been triggered by a cell phone.
Colombia Reports said that Argentinian press is reporting that the bomb was discovered during a routine sweep of the venue. Police in Buenos Aires are currently investigating.