Colombia rebels seize three oil workers, blow up energy tower

BOGOTA (Reuters) - Colombia's FARC rebels kidnapped three oil workers and killed four soldiers in the nation's south, while they blew up an energy tower in the north, military sources said, in a sign the group is stepping up pressure during peace talks.

The kidnappings and other violent incidents on Wednesday came days after the Revolutionary Armed Forces of Colombia, or FARC, made clear during the negotiations in Cuba that it would continue to capture armed forces members even as talks continue.