Dec. 2 (UPI) -- Mexico's attorney general said authorities have arrested several suspects in connection with the shooting deaths last month of nine members of a U.S. family who'd traveled across the border to attend a wedding.
The office of Attorney General Alejandro Gertz Manero said the U.S. Federal Bureau of Investigation helped in obtaining "essential information and evidence."
Mexican police arrested and charged one suspect immediately after the Nov. 4 shootings in Sonora state. Six children and three women were killed in the attack, which occurred as the family members were traveling to a relative's wedding.
The shootings of the LaBaron family, which held dual U.S. and Mexican citizenship, are suspected to be the work of persons involved with Mexican drug cartels and sparked outrage in the United States and Mexico. President Donald Trump last week said his administration would designate Mexican cartels foreign "terrorist" organizations to grant U.S. authorities more power to target them.
Mexican officials have criticized the move, fearing it would open the door for unabated U.S. action against the cartels.
Demonstrators protested in Mexico City on Sunday and called for President Andres Manuel Lopez Obrador to take more action against Mexican cartels -- including Julian LaBaron, who said his family expects to meet with Lopez Obrador this week.