CIUDAD JUAREZ, Mexico (AP) — The tortured and bound bodies of four men were found Monday in an isolated mountainous region of the northern border state of Chihuahua, while five other people were killed in a shooting in a city nearby, authorities said.

The Chihuahua prosecutor's office said the four men were tortured, shot and abandoned along a highway near Creel, a town known as the heart of Tarahumara indigenous group. Police found the bodies on Monday, two days after eight other tortured bodies were found in another part of the state.

Officials also say that the five people killed — four men and a woman — were shot at a convenience store in Chihuahua state's capital, of the same name. The victims were flower vendors, authorities said Monday.