Power Struggle? Agua Prieta violence surge after Chapo's capture

The first signs of a drug cartel power struggle might be appearing on the Mexican border after the arrest of Mexico's most wanted cartel leader.

It's happening in Agua Prieta, Sonora, Mexico, right across the border from the Arizona city of Douglas.

It was broad daylight Wednesday in Agua Prieta when hundreds of bullets blew holes through most everything in sight – trucks, windshields, walls, windows and suspected cartel henchmen inside those vehicles.

Afterward, federal police wearing commando gear poured into the streets of Agua Prieta.

It was the latest episode of gunfire in a border town that played an important role in the Mexican Revolution nearly 100 years ago.

Locals residents worry another revolution may be brewing now, the result of the recent arrest of Joaquin “El Chapo” Guzman, the head of the powerful Sinaloa drug cartel.

It controls the smuggling corridor in and around Agua Prieta.

Juan Carlos Olvera, a local journalist who captured the aftermath of the violence on video, told CBS 5 Investigates that gun battles have pitted two factions of the Sinaloa cartel against each other.

But his images show there was also collateral damage.

Bullets flew into this home while a family was sitting down for a meal, one wounding a 9-year-old girl, who is expected to recover.

Mexican police took four of the people involved in that gun battle into custody.

But they were still asking one question: Is this the first sign of a civil war within the drug cartel – now that its leader is gone?