Guatemala's chief of national police and the country's top anti-drugs official have been arrested over alleged¹ links to drug trafficking.

危地马拉国家警察局长和国家顶级禁毒官员因涉嫌毒品走私而被逮捕。

Mexican drug gangs are increasingly operating through Guatemala

Attorney General（首席检察官，司法部长） Amilcar Velasquez said police chief Baltazar Gomez and Nelly Bonilla were being held in connection with（与……有关） a cocaine² theft in March 2009.

Mr Velasquez said five police agents were killed as a result of the theft.

Mexican drug gangs have been moving operations into Guatemala as they come under pressure in their own country.

The two most senior officials in Guatemala's fight against drug trafficking were arrested on charges of conspiracy³（阴谋，共谋） to commit a crime, illegal possession of weapons and obstruction⁴ of justice（妨碍司法） .

"The captures were the result of tracking the investigation⁵ into the drug robbery that took place in Amatitlan, which those detained today are believed to have participated in," Mr Velasquez said.

The arrests come two days after President Alvaro Colom removed Interior Minister Raul Velasquez from office over alleged corruption⁶.

With US secretary of state about to visit Guatemala, the state department has published a report expressing serious concerns about corruption and inadequate⁷（不充分的，不适当的） law enforcement（法律的实施） in Guatemala.

With Mexico making strong efforts against drug traffickers, Washington fears the cartels are moving south to take advantage of lax（松懈的） policing and limited surveillance in Guatemala, says the BBC's Julian Miglierini in Mexico City.