The decapitated bodies of 25 men and two women have been found near Guatemala's border with Mexico.

危地马拉与墨西哥边境附近发现25名男子和两名女子的被斩首尸体。

The bodies were discovered at a ranch（大农场，大牧场） in Peten province, 500km (310 miles) north of the capital.

The chief of police said the killings² were probably linked to a battle between rival drug gangs fighting for control of the area.

Northern Guatemala is an important transit³ point for drugs smuggled⁴ from South America to the United States.

"This is the worst massacre⁵（大屠杀） we have seen in modern times," police spokesman Donald Gonzalez told Reuters.

Army spokesman Col Ron Urizar said dozens of soldiers had been sent to the Mexican border to prevent any suspects from fleeing the country, El Pais reported.

He said ground and aerial（空中的） surveillance was being carried out in co-ordination with the Mexican authorities.

Officials said the victims appeared to have been ambushed（伏击，埋伏） by gunmen.

They are investigating whether the deaths were related to the Zetas drug gang, which has been expanding its operations into Guatemala from Mexico.

There are also suspicions the massacre was linked to the killing¹ of Haroldo Waldemar Leon in the same area on Saturday.

He was the brother of alleged⁷ drugs trafficker Juan Jose "Juancho" Leon, who was shot dead by the Zetas in 2008.

Guatemalan law enforcement officials say the gang has increasingly moved its operations south since Mexican President Felipe Calderon stepped up his country's fight against the drugs trade.

In February, the Guatemalan government lifted a two-month siege of the Alta Verapaz province - just south of Peten - in an attempt to combat the Zetas.