Arrests in killing of US citizens: Mexico

Mexico's top security official says arrests have been made in last week's killings of nine US women and children by suspected cartel gunmen in northern Mexico.

Security Secretary Alfonso Durazo is not saying how many people have been arrested or giving any information on what organisation they belong to.

His department did not respond to requests for further information Monday.

The ambush attack occurred November 4 in the Mexican state of Sonora. Authorities suspect Mexican drug cartel hit men carried out the attack.

The victims were dual US-Mexican citizens, members of Mormon communities in northern Mexico not affiliated with the Church of Jesus Christ of Latter-Day Saints.