Ambush

Nine US citizens, including children, killed in ambush

The victims are members of the LeBaron family, linked to a breakaway Mormon community that settled in Mexico several decades ago.

The victims were travelling in a convoy of vehicles.

The security minister said the group could have been targeted accidentally as a result of mistaken identity.

Sonora state in northern Mexico is being fought over by two rival gangs, La Línea, which has links to the larger Juárez cartel, and "Los Chapos", which is part of the Sinaloa cartel.