Edit: Wow, the Communist FARC's bombing everything else in Colombia and killing innocent civilians, why not bomb people at Holy Mass too? This ongoing conflict has received significant support from Chavez's Venezuela whose imperialist activities are depriving his country's hungry people of bread.
Bomb experts were dispatched to a Catholic Church there where a device weighing slightly less than one kilo was located under the floor and disarmed just before First Saturday Mass on the 6th of August according to unnamed source. It is suspected that the FARC was behind this attack. They were accused of another attack six days later where a car bomb was detonated, wounding at least nine people.
They also blew up a bus on July 9th last month. The FARC has been perpetrating killings on southern Columbia´s religious centers, especially in Nariño and Cauca provinces
Despite the Catholic Church's calls for mediation, it wouldn't be the first time the FARC has targeted Catholic events and individuals.
These Reds certainly have an interest in making people feel unsafe in their homes and even in their churches.
http://eponymousflower.blogspot.com/2011/08/bomb-defused-at-catholic-church-in.html