At least five people were killed and four others wounded when a group of gunmen attacked a hamlet in southwestern Colombia, media reports said Sunday.

The massacre occurred in Cerro Azul, a hamlet located between the cities of Bolivar and Trujillo, Valle del Cauca province police commander Col. Mariano Botero Coy told Radio Caracol.

About seven gunmen suspected of belonging to the Los Rastrojos drug gang went to the hamlet, which has no more than 15 dwellings, on Saturday night, Botero said.

The gunmen attacked Cerro Azul's residents with automatic weapons, the police commander said.

The attack may be linked to a turf war between rival gangs because cocaine shipments are moved through the area for export via Colombia's Pacific coast, officials said. EFE