Cartagena: Two small bombs exploded in Colombia`s capital Bogota on Friday, and police said they may have been a protest by leftist guerrillas against the presence of US President Barack Obama elsewhere in the country for the Summit of the Americas.
Two other low-intensity blasts occurred in Cartagena where the summit is being held.
"There are windows broken, but nobody hurt or killed," a senior police source said, saying the explosives were placed in a ditch in a residential area near the attorney general`s office and the US embassy in Bogota.
Obama landed in Cartagena, on Colombia`s northern coast far from Bogota, earlier on Friday. A senior military official says two bags of gunpowder exploded in a vacant lot about a quarter mile (400 meters) from Cartagena`s bus station on Friday evening. The official spoke only on condition he not be further identified.
"It might be a protest by an urban guerrilla cell against Obama," the source said.
(With Agencies’ inputs)