Colombia’s Marxist ELN rebels detonated four small explosive devices around the capital, Bogota, early Tuesday morning, causing no injuries but damaging a highway overpass and other structures, police told local media. Propaganda materials from the National Liberation Army (ELN), which regularly attacks oil facilities in Latin America’s fourth largest economy, were left at the sites of the explosions, police told local La FM radio. The attacks came nine days before President Juan Manuel Santos is scheduled to be inaugurated for his second term. The 2002 inauguration of hard-line former President Alvaro Uribe was marred by rebel bombings that killed 21 people.