BOGOTA, Colombia (AP) _ A gunman surprised a Colombian Communist Party activist at her door, killing her with multiple pistol shots, police said.

The murder of the middle-aged Maria Arango, a member of the President's Counsel on Human Rights in 1992-93, occurred on Friday in a rural area just outside Bogota.

Police suggested no motives, although more than 3,000 leftist activists and demobilized rebels have been murdered over the last decade, many by landowner-backed paramilitary groups. The gunman fled with two men who awaited on motorcycles nearby, a police spokesman said.

Arango's work with the presidential counsel focused on developing a project for teaching human rights in Colombia's educational institutions.

President Ernest Samper's office issued a statement lamenting that ``people like her continue to be assassinated by the violent of this country.''