At least nine US citizens, three women, and six children have been killed in an attack by suspected drug cartel gunmen in northern Mexico.
The victims are members of the LeBaron family, linked to a breakaway Mormon community that settled in Mexico several decades ago.
The victims were traveling in a convoy of vehicles.
The security minister said the group could have been targeted accidentally as a result of mistaken identity.
Family members who have spoken to the New York Times newspaper said two of the children killed were less than a year old.