(CNN) Mexican authorities found at least 20 bodies, most of them burned, along a dirt road in the northern state of Tamaulipas near the US border, officials said.

The bodies were found Wednesday afternoon near four charred pickup trucks and a sedan in the rural community of Refugio Hinojosa near the town of Miguel Aleman, federal police said.

Several photos provided by police showed some remains next to the burned-out wreckage of the vehicles.

The incident appeared to be the result of a confrontation between two criminal gangs, Tamaulipas Attorney General Irving Barrios Mojica told journalist Carmen Aristegui in an interview for her radio show in Mexico. Aristegui is also the host of a show on CNN en Español.

He said some of the victims had been wearing "tactical vests with military-type uniforms" and bullets were found nearby that came from weapons typically only used by the military.

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