A suspected remotely detonated explosive device ripped open vehicles on the Pan-American Highway in Cauca A massive roadside blast tore through a bus and other vehicles on Colombia’s Pan-American Highway on Saturday, killing at least 12 people and leaving more than a dozen others wounded in what authorities called a terrorist attack. The explosion struck the El Tunel sector in Cajibio, Cauca, blowing a huge crater into one of the country’s most important transport corridors and scattering