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Associated PressMexican marines have arrested seven gunmen suspected of killing 72 Central and South American migrants in the worst drug cartel massacre to date, the government announced Wednesday.
Four of the suspects were arrested after a Sept. 3 gunbattle with marines, and the other three were captured days later, spokesman Alejandro Poire said at a news conference.
Poire alleged the seven belong to the Zetas drug gang, but he gave no further details on their identities or what led to their arrests.
Investigators believe the migrants were kidnapped by the Zetas and killed after refusing to work for the cartel.
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