CIUDAD JUAREZ, MEXICO (AP) -- A new threat has been introduced in Mexico's drug war.
A U.S. official says a drug gang that carried out the first successful car bombing against Mexican security forces used a water gel explosive commonly substituted for dynamite in mining.
The official says the attackers used Tovex , an industrial explosive that organized crime gangs in the past have stolen from private companies.
Last Thursday's car bomb killed three people, including a federal police officer, in the border city of Ciudad Juarez, near El Paso, Texas.
Mexican authorities say the attackers lured police and paramedics to the scene by calling in a false report of a police officer shot at an intersection.
A graffiti message scrawled on a wall Monday in Ciudad Juarez threatened more attacks.
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