BOGOTA, Colombia, Oct. 21 -- A wave of bombings and massacres by guerrillas and paramilitary groups in Colombia over the weekend killed at least 29 people,
including five children, authorities said today.

In northwestern Colombia, a bomb hidden inside a hot dog cart ripped through an apartment building where families of several police officers lived, killing five
people, including a 9-month-old boy, said police Col. Guillermo Aranda.

Police blamed the attack in El Penol, 130 miles northwest of Bogota, on Colombia's second-largest guerrilla group, the National Liberation Army.

In one of the worst attacks, paramilitary gunmen late Saturday shot and killed 10 peasants in the town of Alejandria in Antioquia province, 117 miles northwest of
Bogota. They accused the peasants of collaborating with the leftist Revolutionary Armed Forces of Colombia (FARC), the country's largest guerrilla group, said
army spokesman Capt. Luis Hernandez.

The army said the FARC, which has waged war against the government for 37 years, was responsible for three attacks over the weekend.

In the northern province of La Guajira, FARC rebels bombed a gas pipeline, killing four brothers ages 5 to 9, the army said. FARC fighters also killed five men and a
woman Saturday in the village of El Habra in the same province, the army said.

In the southwestern province of Valle del Cauca, the army said, rebels dragged four men and a woman from their car, then shot and killed them.

The violence came as the government and FARC rebels appear farther apart than ever in negotiations aimed at ending a war that claims about 3,500 lives a year.