MEXICO CITY - A clash between residents of communities in southern Mexican state of Oaxaca over a land dispute left at least 13 people dead and another one injured, local prosecutors said Tuesday.

The armed attack occurred on Monday afternoon in a place in the Yautepec District in Oaxaca, when several inhabitants of the community of Santa Maria Ecatepec were ambushed by residents of the neighboring town of San Lucas Ixcotepec, according to the state prosecutor's office.

It said in a statement that preliminary inquiries indicate that the inhabitants of Santa Maria Ecatepec went to work in a border area that both communities dispute due to the lack of enough land resources.