An anonymous tip led Mexican soldiers to a house in the border city of Agua Prieta where they found a catapult in the bed of a pickup and another inside the house.

HERMOSILLO, Mexico — The Mexican army says soldiers have seized two catapults that were being used by drug smugglers to fling packages of marijuana across the border into Arizona.

A military statement Tuesday says an anonymous tip led troops to a house in the border city of Agua Prieta where they found a catapult in the bed of a pickup and another inside the house.

It says soldiers also seized 1.4 tons during Monday’s raid in Agua Prieta, which is across the border from Douglas, Ariz.

Mexican troops also seized two catapults in the area last January.

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Authorities said then it was the first time they had seen this smuggling method used by local traffickers.

Mexican authorities on Tuesday said they have found eight dead people in a mangrove swamp in Veracruz, a Gulf coast state that has seen a recent surge in the large-scale dumping of bodies during an outbreak of violence among rival drug cartels.

The Veracruz state Attorney General’s Office says an anonymous tip led federal police and troops to the bodies Tuesday near the city of Boca del Rio. Federal security forces have deployed in the state since masked gunmen dumped 35 bodies on a main highway in that city in September.