MEXICO CITY, Dec. 23 (Xinhua) -- Authorities in the eastern province of Tabasco have arrested four suspects on charges of killing four relatives of a marine who died in a high profile drug bust last week, the state's attorney Rafael Gonzalez Lastra told media on Wednesday.

    Lastra said that soldiers arrested two gunmen late on Tuesday following searches of a hotel in Tabasco's capital Villahermosa. The gunmen killed four members of Melquisidic Angulo Cordova's family and injured two more on Monday night, apparently in revenge for the marine's participation in a raid last Wednesday that killed Mexico's third most wanted man, Arturo Beltran Leyva, he said.

    He told media that the Zetas, the armed wing of drug trafficking organization the Gulf Cartel, had been responsible for killing the family, describing it as a "bloody event."

    Lastra also said there could be more arrests soon.

    Mexico's President Felipe Calderon on Tuesday slammed the Monday night killings, saying they were clearly showing that the drug traffickers destroyed innocent lives with "the lack of scruples."

    Some 6,300 people have died this year in violence related to organized crime.