"The Foreign Ministry sent a diplomatic note to the US Embassy today regarding the January 1 incident at the San Diego-Tijuana border in which it requests a thorough investigation into both the January 1 and the November 25 incidents that took place in the same area," the release said. "The note deplores the occurrence of any sort of violent act on the border with Mexico."
The ministry said the note reiterates Mexico's commitment to protect the human rights and safety of all migrants. It added that the Mexican government would continue to focus on cooperation to address the issue of migration and recognize it as a shared responsibility.
On January 1, US immigration authorities fired tear gas at migrants after more than 100 of them attempted to rush the US border in a bid to enter the country illegally. A similar incident occurred on November 25, when groups of migrants broke off from a larger protest at the border and attempted to cross illegally into the United States. Media reports said that children were among those affected by the smoke in both incidents.