Six people were killed in a shootout between rival gunmen in an agricultural area in the northern Mexican state of Chihuahua, officials said Tuesday.

The bodies of the six men were found Monday in the community of Mesa de la Reforma along with six burned vehicles and seven torched houses, the Chihuahua Attorney General's Office said in a statement.

"As of now, it is presumed that a confrontation occurred between armed groups in this place, where no residents were found," the AG's office said.

Investigators found 389 bullet casings at the crime scene, the AG's office said.

The bullet-riddled bodies were discovered in some farm fields just outside the town.

Four of the men wore "tactical uniforms of different colors," as well as bullet-proof vests, and two had "partially separated heads," the AG's office said.

Two of the victims, ages 19 and 20, have been identified and investigators are trying to identify the others, the AG's office said.

Chihuahua has been one of the states most affected by the wave of drug-related violence in Mexico. EFE