A drug cartel has used a car bomb for the first time in Mexico's decades-long fight against traffickers, setting a deadly trap against federal police in a city across the border from Texas, the mayor of Ciudad Juarez said Friday. Mayor Jose Reyes said federal police have confirmed to him that a car bomb was used in the attack that killed three people Thursday.

It was the first time a drug cartel has used a bomb to attack Mexican security forces, marking an escalation in the country's already raging drug war.

• Federal police and paramedics were lured to the scene by a phone call reporting that shots were fired at a major intersection and a municipal police officer lay wounded at a major intersection.
• As the paramedics were working on the wounded man, a parked car exploded.
• Reyes said authorities later determined that the wounded man was not a policeman, although he was wearing a fake uniform. The man was among the three people who died in the attack.
• The others were a federal police officer and a medical technician. Brig. Gen. Eduardo Zarate, the commander of the regional military zone, told reporters that up to 22 pounds (10 kilograms) of explosives might have been used, although investigators were still trying to determine what type.

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